View source for Sinking of HMAS Sydney

{{Short description|1941 naval battle during World War II}}
{{DISPLAYTITLE:Sinking of HMAS ''Sydney''}}
{{Use Australian English|date=March 2018}}
{{Use dmy dates|date=March 2018}}
{{Infobox military conflict
 |conflict     = ''Sydney''–''Kormoran'' action
 |partof       = the [[Indian Ocean Theatre]] of [[World War II]]
 |image        = {{multiple image
 | width = 300
 | align = center
 | direction = vertical
 | image1 = Sydney cruiser SLV H91.108 1019.jpg
 | alt1 = HMAS Sydney
 | image2 = Bundesarchiv Bild 146-1985-074-27, Hilfskreuzer Kormoran.jpg
 | alt2 = Kormoran
 | footer =
 }}
 |image_size   = 300px
 |caption      = Light cruiser HMAS ''Sydney'' (top) and auxiliary cruiser ''Kormoran'' (bottom) (both in 1940)
 |date         = {{start date|1941|11|19|df=y}}
 |place        = Off [[Dirk Hartog Island]], [[Indian Ocean]]
 |coordinates  = {{coord|26|S|111|E|display=inline,title|type:event_region:AU}}
 |map_type     = Indian Ocean
 |map_relief   = 1
 |map_size     = 275
 |map_marksize = 16
 |map_mark     = Icone Cible.svg
 |map_caption  =
 |map_label    =
 |result       = 
 |combatant2   = {{flagcountry|Australia}}
 |combatant1   = {{flagcountry|Nazi Germany}}
 |commander2   = {{flagdeco|Australia|naval-1913}} [[Joseph Burnett]]{{KIA}}
 |commander1   = {{flagdeco|Nazi Germany|naval}} [[Theodor Detmers]]
 |strength2    = Light cruiser {{HMAS|Sydney|D48|2}}
 |strength1    = Auxiliary cruiser {{ship|German auxiliary cruiser|Kormoran||2}}
 |casualties2  = All 645 lost <br> {{HMAS|Sydney|D48|2}} sunk
 |casualties1  = 82 killed <br> {{ship|German auxiliary cruiser|Kormoran||2}} scuttled
 |campaignbox  = {{Campaignbox Indian Ocean Theatre}}{{Campaignbox Axis naval attacks on Australia}}
}}

On 19 November 1941, the Australian light cruiser {{HMAS|Sydney|D48|6}} and the German auxiliary cruiser {{ship|German auxiliary cruiser|Kormoran||2}} engaged each other in a battle off the coast of [[Western Australia]]. ''Sydney'', with Captain [[Joseph Burnett]] commanding, and ''Kormoran'', under {{lang|de|[[Fregattenkapitän]]}} ({{lit |Frigate captain}}) [[Theodor Detmers]], encountered each other approximately {{convert|106|nmi|lk=in}} off [[Dirk Hartog Island]]. The [[single-ship action]] lasted half an hour, and both ships were destroyed.

From 24 November, after ''Sydney'' failed to return to port, air and sea searches were conducted. Boats and rafts carrying survivors from ''Kormoran'' were recovered at sea, while others made landfall at [[Quobba|Quobba Station]], {{convert|60|km|0}} north of [[Carnarvon, Western Australia|Carnarvon]]; 318 of the 399 personnel on ''Kormoran'' survived. While debris from ''Sydney'' was found, there were no survivors from the 645-strong complement. It was the largest loss of life in the history of the [[Royal Australian Navy]], the largest [[Allies of World War II|Allied]] warship lost with all hands during World War II, and a major blow to Australian wartime morale.<ref name=Jeans>Jeans, ''Seafaring Lore and Legend'', pp. 189–191</ref> Australian authorities learned of ''Sydney''{{'}}s fate from the surviving ''Kormoran'' personnel, who were held in [[prisoner of war]] camps until almost two years after the war with Germany had ended.

Controversy has often surrounded the battle, especially in the years before the two wrecks were located in 2008. How and why a purpose-built warship such as ''Sydney'' was defeated by a modified merchant vessel such as ''Kormoran'' was the subject of speculation, with numerous books on the subject, as well as two official reports by government inquiries, published in 1999 and 2009.

According to German accounts—which were assessed as truthful and generally accurate by Australian interrogators during the war, as well as most subsequent analyses—''Sydney'' approached so close to ''Kormoran'' that the Australian cruiser lost the advantages of heavier [[armour]] and superior gun range. Nevertheless, several post-war publications have alleged that ''Sydney''{{'}}s loss had been the subject of an extensive [[cover-up]], that the Germans had not followed the [[laws of war]], that Australian survivors were massacred following the battle, or that the [[Empire of Japan]] had been secretly involved in the action (before officially declaring war in December). Currently no evidence supports any of these theories.

==Background==
{{See also|Military history of Australia during World War II|Axis naval activity in Australian waters}}

===HMAS ''Sydney''===
{{HMAS|Sydney|D48|6}} was one of three [[Leander-class cruiser (1931)#Modified Leander group|Modified ''Leander class'']] light cruisers of the RAN.<ref>Olson, ''Bitter Victory'', p. 3</ref> Built for the [[Royal Navy]], the cruiser was bought by the Australian government to replace {{HMAS|Brisbane|1915|6}}, and it was commissioned into the RAN in September 1935.<ref name=Cassells148.9>Cassells, ''The Capital Ships'', pp. 148–9</ref> The cruiser was {{convert|562|ft|4|in|m|order=flip}} long and [[displacement (ship)|displaced]] {{convert|8940|LT|t|order=flip|lk=on}}.<ref name=Cole18>Cole, ''The loss of HMAS Sydney II'', vol. 1, p. 18</ref> ''Sydney'' carried eight [[BL 6 inch Mk XXIII naval gun|6-inch (152 mm) guns]] in four twin turrets ("A" and "B" forward, "X" and "Y" aft) as primary armament.<ref>Olson, ''Bitter Victory'', pp. 3–4</ref> These were supplemented by four [[QF 4 inch Mk V naval gun|4-inch (102 mm)]] [[Anti-aircraft warfare|anti-aircraft guns]], nine [[.303 British|.303-inch (7.7 mm)]] [[machine gun]]s, and eight {{convert|21|in|mm|adj=on|0|order=flip}} [[torpedo tube]]s in two quadruple mountings.<ref>Olson, ''Bitter Victory'', pp. 3–8</ref> The cruiser also carried a single [[Supermarine Walrus]] amphibious aircraft.<ref>Olson, ''Bitter Victory'', pp. 22–3</ref>
[[File:HMAS Sydney (AWM 301473).jpg|thumb|left|alt=A two funnelled cruiser at sea. People are clustered on the forward deck|HMAS ''Sydney'' in 1940]]

Initially assigned to escort and patrol duties in Australian waters, ''Sydney'' was sent to the Mediterranean in mid-1940.<ref name=Cassells149>Cassells, ''The Capital Ships'', p. 149</ref><ref name=Goldrick111>Goldrick, in ''The Royal Australian Navy'', p. 111</ref> ''Sydney'' [[Battle of the Mediterranean|operated against Italian naval forces]] for eight months, during which she participated in multiple battles, sank two Italian warships and several merchantmen, and supported convoy operations and shore bombardments.<ref>Goldrick, in ''The Royal Australian Navy'', pp. 112–7</ref> The cruiser was recalled to Australia in early January 1941: the need to rest the ship and personnel, plans to spread combat experience across the RAN fleet, and a desire to reinforce the nation following [[Axis naval activity in Australian waters#German surface raiders in 1940|German raider activity in nearby waters]] were all factors.<ref>Goldrick, in ''The Royal Australian Navy'', pp. 110–1</ref><ref>Cassells, ''The Capital Ships'', p. 150</ref><ref>Grove, in ''The Royal Australian Navy in World War II'', p. 42</ref> ''Sydney'' was assigned to [[Fremantle, Western Australia]], and resumed escort and patrol duties.<ref name=Goldrick117>Goldrick, in ''The Royal Australian Navy'', p. 117</ref> Command was handed over from Captain [[John Augustine Collins|John Collins]] to Captain [[Joseph Burnett]] in May 1941.<ref>Frame, ''HMAS Sydney'', p. 26</ref>

On 11 November, ''Sydney'' departed Fremantle for [[Singapore]] with the transport {{SS|Zealandia|1910|6}}.<ref name=Oldham33>Oldham, ''Bitter Victory'', p. 33</ref> The vessels sailed to [[Sunda Strait]], where the troopship was handed over on 17 November to {{HMS|Durban|D99|6}}.<ref name=Oldham33/> ''Sydney'' then turned for home and was scheduled to arrive in Fremantle late on 20 November.<ref name=Oldham33/> At the time of the battle, she had a [[ship's company]] of 645: 41 officers, 594 sailors, six [[Royal Australian Air Force]] personnel, and four civilian canteen staff.<ref>Cassells, ''The Capital Ships'', p. 152</ref>

===''Kormoran''===
During the 1930s, disparities between the conventional warship strength of the ''[[Kriegsmarine]]'' (German Navy) and other nations caused by the [[Treaty of Versailles]] led the German military to recognise that [[auxiliary cruiser]]s engaged in [[commerce raiding]] would be of use during future wars and that suitable vessels should be identified.<ref name= Frame41.7>Frame, ''HMAS Sydney'', pp. 41–7</ref> The merchant ship {{ship||Steiermark||2}} (named after [[Styria]]) was one such vessel; she was taken up by the {{lang|de|Kriegsmarine}} at the start of World War II.<ref name=Frame41.7/> Renamed {{ship|German auxiliary cruiser|Kormoran||2}}, she was the largest and newest of nine{{efn|Some sources state that the {{lang|de|Kriegsmarine}} operated eleven auxiliary cruisers; two were reclassified for other uses before leaving German waters.<ref name=Frame275.7/>}} raiders, referred to as {{lang|de|Hilfskreuzer}} (auxiliary cruisers) or {{lang|de|Handelsstörkreuzer}} (trade disruption cruisers).<ref name=Frame275.7>Frame, ''HMAS Sydney'', pp. 275–7</ref><ref name=Winter13>Winter, ''H.M.A.S. Sydney'', p. 13</ref>
[[File:Bundesarchiv Bild 146-1969-117-48, Hilfskreuzer Kormoran.jpg|thumb|right|alt=A merchant ship with a central superstructure and single funnel at sea. The photograph was taken from another vessel, with a sailor standing in frame on the right side, facing the merchant ship|''Kormoran'' in 1940, view from a German U-boat]]

''Kormoran'' was commissioned in October 1940. After modification, she was {{convert|515|ft|m|order=flip}} long and measured {{GRT|8736}}.<ref>Frame, ''HMAS Sydney'', pp. 50–1, 277</ref> The raider was fitted with six single {{convert|15|cm|in|adj=on}} guns (two each in the forecastle and quarterdeck, with the fifth and sixth on the centreline) as the main armament, supplemented by two {{convert|37|mm|in|2|adj=on}} anti-tank guns, five {{convert|20|mm|in|2|adj=on}} anti-aircraft [[autocannon]]s, and six {{convert|21|in|mm|adj=on}} torpedo tubes (a twin above-water mount on each side, and two single underwater tubes).<ref name=Frame46>Frame, ''HMAS Sydney'', p. 46</ref> The {{convert|15|cm|in|adj=on}} guns were concealed behind false hull plates and cargo hatch walls, which would swing clear when the order to decamouflage was given. The secondary weapons sat on hydraulic lifts hidden within the superstructure.<ref name=Frame46/> The ship could be disguised as one of several Allied or neutral vessels.<ref>Olson, ''Bitter Victory'', p. 97</ref>

''Kormoran'' departed German waters in December 1940, under the command of {{lang|de|Fregattenkapitän}} (Frigate captain, equivalent to Commander) [[Theodor Detmers]].<ref name=Winter183>Winter, ''H.M.A.S. Sydney'', p. 183</ref><ref>Olson, ''Bitter Victory'', p. 402</ref><ref name=Frame55>Frame, ''HMAS Sydney'', p. 55</ref> After operating in the Atlantic, during which time she sank seven merchant ships and captured an eighth, the raider sailed to the Indian Ocean in late April 1941.<ref>Frame, ''HMAS Sydney'', pp. 56–68</ref> Only three merchantmen were intercepted during the next six months, and ''Kormoran'' was diverted several times to refuel German support ships.<ref>Frame, ''HMAS Sydney'', pp. 69–77</ref> As the raider was carrying several hundred [[naval mine|sea mines]] and was expected to deploy some of these before returning home in early 1942, Detmers planned to mine shipping routes near [[Cape Leeuwin]] and Fremantle, but he postponed this after detecting wireless signals from a warship (Australian heavy cruiser {{HMAS|Canberra|D33|6}}) in the area.<ref>Winter, ''H.M.A.S. Sydney'', pp. 123, 125</ref> Instead, he decided to sail north and investigate [[Shark Bay]].<ref>Frame, ''HMAS Sydney'', pp. 77–9</ref> At the time of the battle, the raider was disguised as the Dutch merchantman {{ship||Straat Malakka||2}} and carried 399 personnel: 36 officers, 359 sailors, and 4 Chinese sailors hired from the crew of a captured merchantman to run the ship's laundry.<ref name=Cassells151>Cassells, ''The Capital Ships'', p. 151</ref><ref>Frame, ''HMAS Sydney'', p. 47</ref>

==Battle==
:''Note: All times in this section are [[UTC+7]].''<!-- that was shipboard time for ''Kormoran''; their account is the only one to survive -->

===Identification===
On 19 November, shortly before 16:00, ''Kormoran'' was {{convert|150|nmi|lk=in}} southwest of [[Carnarvon, Western Australia]].<ref name=Gill453>Gill, ''Royal Australian Navy, 1939–1942'', p. 453</ref> The raider was sailing northwards (heading 025°) at {{convert|11|kn|lk=in}}.<ref name= Gill453/><ref name=Hore78>Hore, in ''The Royal Australian Navy'', p. 78</ref> At 15:55, what was initially thought to be a [[tall ship]] sail was sighted off the port bow, although it was quickly determined to be the mast of a warship (HMAS ''Sydney'').<ref name=Hore78/> Detmers ordered ''Kormoran'' to alter course into the sun (heading 260°) at maximum achievable speed (which quickly dropped from {{convert|15|to|14|kn}} because of problems in one of her diesel engines) while setting the ship to [[action stations]].<ref name=Hore78/> ''Sydney'' spotted the German ship around the same time, and she altered from her southward heading to intercept at {{convert|25|kn}}.<ref name=Gill453/><ref name=Hore78/>

[[File:Straat Malakka.jpg|thumb|left|alt=A dark-coloured merchant ship at sea with land and several other ships visible in the background|''Straat Malakka'' in 1940]]
As she closed the gap, the Australian cruiser requested that ''Kormoran'' identify herself.<ref name=Olson178>Olson, ''Bitter Victory'', p. 178</ref> Communications were initially attempted with a [[signal lamp]] to repeatedly send "[[International Code of Signals|NNJ]]" ("You should make your signal letters"), but those aboard the raider did not understand the uncommonly used signal and did not respond.<ref name=Olson178/><ref name=Frame104>Frame, ''HMAS Sydney'', p. 104</ref> ''Sydney'' continued to signal for 30 minutes, after which those aboard the cruiser used [[International maritime signal flags|flags]] to send the more common "VH" signal ("You should hoist your signal letters"), while the signal lamp was used to transmit the message in plain language.<ref name=Frame104/><ref>Olson, ''Bitter Victory'', pp. 178–9</ref> After another delay, ''Kormoran'' raised "PKQI"—the call-sign for the Dutch merchant ship ''Straat Malakka''—on the triatic [[Stays (nautical)|stay]] and hoisted a Dutch merchant ensign.<ref name=Gill453/> As ''Sydney'' was approaching from just starboard of ''Kormoran''{{'}}s stern and {{convert|15000|m|ft}} away, the call-sign was obscured by the raider's funnel; German accounts vary as to if this was to further the illusion of a civilian ship, a ruse to lure ''Sydney'' closer, or an error on the signaller's part.<ref name=Olson179>Olson, ''Bitter Victory'', p. 179</ref><ref name=Mearns28>Mearns, ''The Search for the Sydney'', p. 28</ref> ''Sydney'' signalled "Make your signal letters clear", which the signals officer aboard ''Kormoran'' did by lengthening the [[halyard]] and swinging it around to starboard.<ref name= Gill453/><ref name=Olson179/> By 16:35, with ''Sydney'' {{convert|8000|m|ft}} away, the malfunctioning engine aboard ''Kormoran'' was repaired, but Detmers chose to keep it in reserve.<ref name=Mearns28/><ref>Winter, ''H.M.A.S. Sydney'', p. 130</ref>

''Sydney'' asked ''Kormoran'' "Where bound?", to which the raider responded "Batavia".<ref name= Olson180>Olson, ''Bitter Victory'', p. 180</ref> ''Sydney'' may have then made signals asking for the raider's port of origin and cargo; the Germans who claimed this said their replies were "Fremantle" and "Piece-goods", respectively.<ref name=Olson181>Olson, ''Bitter Victory'', p. 181</ref><ref>Gill, ''Royal Australian Navy, 1939–1942'', pp. 453–4</ref> At around 17:00, Detmers instructed his wireless operators to send a false [[distress signal]] indicating that ''Straat Malakka'' was being approached by a suspicious ship.<ref name=Gill453/> The message, transmitted at 17:03 and repeated at 17:05, contained the distress call for a merchantman under attack from a raider instead of a warship (QQQQ, as opposed to RRRR), the latitude and longitude of the transmitting ship, the time per [[Greenwich Mean Time]] (the normal practice was to transmit local time; using GMT was to let the ''Kriegsmarine'' know that the ship was actually a raider about to be lost), and the ship's name.<ref>Cole, ''The Loss of HMAS Sydney II'', vol. 2, pp. 317–8</ref><ref>Olson, ''Bitter Victory'', pp. 186–9</ref> This signal was partially received by the [[tugboat]] ''Uco'' ("QQQQ [unintelligible] 1000 GMT") and a shore station at [[Geraldton]] ("[unintelligible] 7C 11115E 1000 GMT").<ref>Olson, ''Bitter Victory'', p. 186</ref> The Geraldton station broadcast a message to all ships asking if there was anything to report (which was interpreted by the Germans as acknowledgement of their signal), but after no response was forthcoming, they ignored it until a report on the signal was forwarded to the Naval Board on 27 November.<ref name=Hore78/><ref name=Olson85>Olson, ''Bitter Victory'', p. 85</ref>

[[File:Bundesarchiv Bild 146-1985-117-02A, Hilfskreuzer Kormoran.jpg|thumb|alt=A dark-coloured merchant ship at sea. The head of a person wearing a sun helmet is visible in the foreground|Port view of ''Kormoran'' from a German U-boat in 1940]]
During the exchanges and distress signal, ''Sydney'' positioned herself just off the raider's starboard beam on a parallel course, approximately {{convert|1300|m|ft}} from ''Kormoran''.<ref name=Gill454>Gill, ''Royal Australian Navy, 1939–1942'', p. 454</ref> The cruiser [[#action stations|may or may not]] have been at [[action stations]]; the main guns and port torpedo launcher were trained on ''Kormoran,'' and her [[Supermarine Walrus|Walrus]] scout plane had been readied for launch, prompting Detmers to prepare to engage ''Sydney'', but her {{convert|4|in|mm|adj=on}} guns were unmanned, and personnel were standing on the upper deck.<ref name=Gill454/><ref>Olson, ''Bitter Victory'', pp. 195, 219–21</ref> During her manoeuvre, ''Sydney'' appeared to signal "IK" (the short-form for "You should prepare for a cyclone, hurricane, or typhoon"), which ''Kormoran'' did not respond to, as from their perspective, such a signal did not make sense.<ref name=Frame104/><ref>Cole, ''The Loss of HMAS Sydney II'', vol 2, p. 9</ref> The Germans were unaware that the letters were the interior of the real ''Straat Malakka''{{'}}s secret Allied-assigned callsign, "IIKP": to verify her identity, the ship had to signal back the outer letters.<ref name=Frame104/><ref name=Gill454/> The aircraft was shut down by 17:25, and the catapult swung into the storage position; the two ships were too close for a safe launch.<ref>Olson, ''Bitter Victory'', p. 209</ref>

At around 17:30, after the raider had failed to reply for 15 minutes, ''Sydney'' signalled by light "Show your [[recognition signal|secret sign]]".<ref name=Gill454/><ref>Olson, ''Bitter Victory'', p. 195</ref>

===Action===
In response to the cruiser's signal, Detmers ordered that ''Kormoran''{{'}}s disguise be dropped, for the Dutch flag to be replaced by the ''Kriegsmarine'' ensign, and for the guns and torpedoes to open fire.<ref name=Gill454/> Accounts disagree on which ship fired first but agree that both opened fire almost simultaneously.<ref name=Olson234>Olson, ''Bitter Victory'', p. 234</ref> The first shots from ''Sydney'', a full, eight-shell salvo from the main guns, were reported in most accounts to have passed over ''Kormoran''. However, some of the Germans said that shells punched through the funnel and the wireless office at bridge level without exploding and hit the water on the far side of the raider.<ref name=Gill454/><ref name=Olson216.8>Olson, ''Bitter Victory'', pp. 216–8</ref> One analysis claims that this was either a warning shot just over the superstructure or an attempt to destroy the raider's bridge as a prelude to capture.<ref name=Olson216.8/> With ''Kormoran''{{'}}s opening salvo (which consisted of two shells instead of four because the raider's two centreline guns were slower to decamouflage), the gunnery officer attempted to bracket the cruiser's bridge but failed to hit it, with the shells striking other parts of the ship or missing completely.<ref name=Olson248>Olson, ''Bitter Victory'', p. 248</ref> Two torpedoes from ''Kormoran''{{'}}s starboard above-water tubes were launched simultaneously with the raider's attack, and the close proximity of the target allowed the use of the anti-aircraft and close defence guns to rake ''Sydney''{{'}}s flank, thus preventing the use of the cruiser's secondary weapons.<ref name=Gill454/><ref>Mearns, ''The Search for the Sydney'', p. 35</ref>

Subsequent salvoes from the raider were more accurate. The second, three-shell salvo destroyed ''Sydney''{{'}}s bridge and damaged her upper superstructure, including the [[Director (military)|gun direction control tower]], wireless offices, and foremast.<ref name=Olson248/> The fourth {{convert|15|cm|in|adj=on}} gun was ready by this time, and all four began to fire. The third and fourth salvoes knocked the cruiser's "A" and "B" turrets out of action before they could fire a second time, and the fifth hit ''Sydney'' on the waterline in proximity to the forward engine room, although one shell hit high and destroyed the Walrus.<ref name=Gill454/><ref>Olson, ''Bitter Victory'', pp. 248–9</ref> ''Kormoran''{{'}}s guns were aimed at ''Sydney'''s waterline and upper deck during the next three salvoes.<ref name=Olson249/> After the sixth German salvo, ''Sydney'' resumed fire with her aft turrets. "Y" turret fired less than four times with little effect, but multiple shots from "X" turret struck ''Kormoran'', damaging the raider's machinery spaces, wounding the sailors manning one of the guns, and starting a fire in an oil tank.<ref name=Gill454/><ref>Olson, ''Bitter Victory'', pp. 234–5</ref>

Around the time of the eighth or ninth German salvo, one of the two torpedoes fired at the start of the engagement struck ''Sydney'' just forward of "A" turret and near the [[asdic]] compartment (the weakest point on the ship's hull), ripping a hole in the side and causing the bow of the cruiser to angle down.<ref name=Olson249>Olson, ''Bitter Victory'' p. 249</ref><ref>Mearns, ''The Search for the Sydney'', pp. 37, 205</ref> After the torpedo strike, ''Sydney'' turned hard to port; the Germans assumed that the Australian ship was trying to ram them, but the cruiser passed aft.<ref name=Gill454/><ref name=Olson234/> During the turn, the 10th German salvo tore the roof from "B" turret and destroyed "A" turret's housing.<ref>Mearns, ''The Search for the Sydney'', p. 37</ref>

The main phase of the engagement ended around 17:35, with ''Sydney'' heading south and slowing while ''Kormoran'' maintained her course and speed.<ref name=Gill454/><ref name=Olson249/> ''Sydney'''s main armament was completely disabled (the forward turrets were damaged or destroyed, while the aft turrets were jammed facing port, away from ''Kormoran''), and her secondary weapons were out of range.<ref>Olson, ''Bitter Victory'', p. 268</ref> The cruiser was wreathed in smoke from fires burning in the engine room, forward superstructure, and around the aircraft catapult.<ref name=Gill456>Gill, ''Royal Australian Navy, 1939–1942'', p. 456</ref> ''Kormoran'' discontinued salvo firing, but the individually firing aft guns scored hits as ''Sydney'' crossed the raider's stern.<ref name=Gill456/><ref>Olson, ''Bitter Victory'', p. 250</ref>

At around 17:45, ''Sydney'' fired two torpedoes from her starboard tubes (although some Germans reported more).<ref>Mearns, ''The Search for the Sydney'', p. 201</ref> Prior to the torpedo launch, Detmers had decided to destroy ''Sydney'' completely and ordered the raider to turn to port so four-gun salvoes could be fired. This manoeuvre caused the torpedoes to pass astern of ''Kormoran''.<ref name=Gill456/><ref>Olson, ''Bitter Victory'', pp. 258–9</ref> After completing the turn, battle damage caused ''Kormoran''{{'}}s engines to fail completely, leaving the raider dead in the water while ''Sydney'' continued to sail southwards at low speed.<ref name=Gill456/> ''Kormoran'' maintained a high rate of fire despite being immobilised—some sailors claimed that up to 450 shells were used during the second phase of the battle—and scored hits on the cruiser, although many shells missed as the range increased.<ref>Olson, ''Bitter Victory'', pp. 259–60</ref> The raider fired her guns for the last time around 17:50, with the range at {{convert|6600|yd|m}}, and a torpedo was launched at 18:00 but missed ''Sydney''.<ref name=Gill456/>

===Conclusion===
By the end of the 30-minute battle, the ships were about {{convert|10000|m|ft}} apart. Both were heavily damaged and on fire.<ref name=Gill456/><ref>Olson, ''Bitter Victory'', p. 237</ref>

''Sydney'' was proceeding on a south-southeast bearing, apparently not under control.<ref name=Gill456/> The Australian warship quickly disappeared from German sight, although the glow of the burning ship consistently lit the horizon until 22:00, with some German survivors stating that the light was visible consistently or occasionally until midnight.<ref name=Gill456/> ''Sydney'' sank during the night; it was originally thought that the cruiser exploded when fires reached the shell [[magazine (artillery)|magazines]] or torpedo launchers, or took on water through the shell holes on her port side and [[capsize]]d.<ref name=Gill458>Gill, ''Royal Australian Navy, 1939–1942'', p. 458</ref><ref>Olson, ''Bitter Victory'', pp. 300–3</ref> However, after the wrecks were located, it was determined that ''Sydney'' was under limited control after the battle, maintaining a course of 130–140 degrees true at speeds of {{convert|1.5|kn}}.<ref name=Mearns204.5/> The ship remained afloat for up to four hours before the bow tore off and dropped almost vertically under the weight of the anchors and chains.<ref name=Mearns204.5>Mearns, ''The Search for the Sydney'', pp. 204–5</ref> The rest of the ship sank shortly afterwards and glided upright for {{convert|500|m|ft}} underwater until it hit the seabed stern-first.<ref name=Mearns204.5/>

''Kormoran'' was stationary, and at 18:25, Detmers ordered the ship to be abandoned, as damage to the raider's engine room had knocked out the fire-fighting systems, and there was no way to control or contain the oil fire before it reached the magazines or the mine hold.<ref name=Gill456/><ref>Olson, ''Bitter Victory'', p. 263</ref> All boats and life rafts were launched by 21:00, and all but one filled. A skeleton crew manned the weapons while the officers prepared to [[scuttling|scuttle]] the ship.<ref name=Gill456/> ''Kormoran'' was abandoned at midnight; the ship sank slowly until the mine hold exploded 30 minutes later.<ref name=Gill456/> The German survivors were in five boats and two rafts: one [[Cutter (boat)|cutter]] carrying 46 men, two damaged steel life rafts with 57 and 62 aboard (the latter carrying Detmers and towing several small floats), one workboat carrying 72 people, one boat with 31 men aboard, and two rafts, each bearing 26 sailors.<ref>Frame, ''HMAS Sydney'', pp. 3–5</ref> During the evacuation, a rubber life raft carrying 60 people, mostly wounded, sank without warning, drowning all but three aboard.<ref name=Frame95>Frame, ''HMAS Sydney'', p. 95</ref><ref>Winter, ''H.M.A.S. Sydney'', p. 142</ref> Total German casualties were six officers, 75 sailors, and one Chinese laundryman.<ref name="Winter183"/><ref name= "Cassells151"/>

==Search and rescue==
:''Note: All times in this section are [[UTC+8]].{{clarification needed|date=November 2021}}''<!-- that was the time in Western Australia, where the search effort was coordinated. -->
When ''Sydney'' did not arrive on schedule, there was no immediate concern; the northbound journey with ''Zealandia'' could have taken longer than expected, ''Durban'' could have been late to the rendezvous, ''Sydney'' could have diverted to aid southbound merchant shipping, or minor engine problems could have occurred.<ref name=Gill451>Gill, ''Royal Australian Navy, 1939–1942'', p. 451</ref><ref name=Olson34>Olson, ''Bitter Victory'', p. 34</ref> Warships were expected to maintain wireless silence unless absolutely necessary; none of these was sufficient reason to break silence and inform Fremantle of the delay.<ref name=Olson34/> When the ship failed to arrive by 23 November, wireless communications stations (initially those in Fremantle, then all high-power stations in Australia) began signalling, ordering ''Sydney'' to report in.<ref name=Gill451/>

At 06:00 on 23 November, the troopship {{RMS|Aquitania||6}} recovered one of the two rafts carrying 26 German sailors at {{Coord|24|35|S|110|57|E|display=inline|type:event}}.<ref>Olson, ''Bitter Victory'', p. 39</ref> Initially believing that these were survivors of a German raider attack and that the raider might still be in the area, ''Aquitania'' resumed her voyage to Sydney, maintaining silence until the afternoon of 26 November.<ref>Frame, ''HMAS Sydney'', pp. 4, 6–7</ref> Detmers saw the troopship but did not make their boat's presence known, as he hoped to be recovered by a [[Neutral powers during World War II|neutral]] ship.<ref name=Frame4>Frame, ''HMAS Sydney'', p. 4</ref>

Six [[Lockheed Hudson]] aircraft from [[No. 14 Squadron RAAF]], based at [[RAAF Base Pearce]], began to search for the ship on the morning of 24 November.<ref>Olson, ''Bitter Victory'', p. 35</ref> When it was learned that the ''Zealandia'' handover occurred on schedule, air searches commenced in the [[Java Sea]].<ref>Gill, ''The Royal Australian Navy, 1939–1942'', pp. 451–2</ref> The first news relating to the engagement between ''Sydney'' and ''Kormoran'' was received by the Australian Naval Board during the afternoon of 24 November; the British tanker ''Trocas'' reported that she had rescued a raft at 15:00 carrying 25 German naval personnel (one having perished) at {{Coord|24|6|S|111|40|E|display=inline|type:event}}.<ref name=Frame5>Frame, ''HMAS Sydney'', p. 5</ref><ref name=Gill452>Gill, ''The Royal Australian Navy, 1939–1942'', p. 452</ref> After further communication with ''Trocas'', the Naval Board learned that the sailors had come from the raider ''Kormoran'', which had participated in a mutually destructive engagement with an unspecified ship, which the Naval Board assumed was ''Sydney''.<ref name=Frame5/>

[[File:Kormoran survivors.jpg|thumb|upright|left|alt=Photograph looking down on two lifeboats crammed with people in naval uniforms. A third lifeboat of a different design can be seen behind the first two.|Survivors from ''Kormoran'' under tow in two of [[AHS Centaur|''Centaur''{{'}}s]] lifeboats. The German lifeboat can be seen behind them.]]
Wireless signals to ''Sydney'' ceased, as it was assumed that if the cruiser had survived, battle damage or operational reasons prevented her reply.<ref name=Olson37>Olson, ''Bitter Victory'', p. 37</ref> Six nearby merchant vessels (''Pan Europe'', ''Saidja'', {{MV|Herstein|1939|2}}, ''Sunetta'', [[AHS Centaur|''Centaur'']], and ''Hermion'') were instructed to pass through that location and keep a lookout for survivors or wreckage of either ship, while four RAN auxiliaries ({{HMAS|Yandra||6}}, {{HMAS|Heros||2}}, {{HMAS|Olive Cam||2}}, and {{HMAS|Wyrallah||2}}) sailed from Fremantle to search the area.<ref name=Gill452/> Aircraft from No. 14 and [[No. 25 Squadron RAAF|No. 25]] Squadrons were relocated to [[Carnarvon, Western Australia|Carnarvon]] to commence aerial searches the next morning. They were supplemented by two [[PBY Catalina]] flying boats, one each from Townsville and Port Moresby.<ref name=Frame5/><ref name=Olson37/> On 25 November, {{ship|HNLMS|Tromp|1937|6}} was sent from Sunda Strait to follow ''Sydney''{{'}}s assumed course if she had headed for Surabaya or Singapore after sustaining damage.<ref name=Gill452/><ref>Olson, ''Bitter Victory'', pp. 36–7</ref>

Several German lifeboats were spotted on 25 November during the air search off Western Australia. The 46-man cutter had come ashore at [[Quobba|17-Mile Well]], the 57-man lifeboat was nearing [[Quobba|Red Bluff]] when spotted, and a third lifeboat was further off the coast.<ref name=Frame6>Frame, ''HMAS Sydney'', p. 6</ref><ref>Olson, ''Bitter Victory'', p. 40</ref> These locations were all within the {{convert|180|km|adj=on}} coastline boundary of an enormous [[sheep station]]. That afternoon, the staff of [[Quobba]] Station rounded up the two groups that had made landfall with no resistance.<ref name=Frame6/> On the morning of 26 November, aircraft spotted two boats at sea but were unable to find them again that afternoon.<ref>Olson, ''Bitter Victory'', pp. 47–8</ref> At sunset, the 31-man boat was located by the passenger ship ''Koolinda'' at {{Coord|24|07|S|112|46|E|display=inline|type:event}}, which recovered the sailors and made for Carnarvon.<ref name=Frame7>Frame, ''HMAS Sydney'', p. 7</ref>

''Centaur'', which had been ordered to collect the Germans from Carnarvon and transport them to Fremantle, encountered Detmers' lifeboat at 22:20, at coordinates {{Coord|24|39|S|112|15|E|display=inline|type:event}}.<ref>Olson, ''Bitter Victory'', p. 52</ref> The crew of ''Centaur'' lowered food to the 62 in the lifeboat, took on nine wounded, and began to tow the lifeboat.<ref name=Mill18.20>Milligan and Foley, ''Australian Hospital Ship Centaur'', pp. 18–20</ref> During the voyage to Carnarvon, the damaged and overloaded German lifeboat was swamped. ''Centaur''{{'}}s master lowered two of his lifeboats for the Germans to use before resuming the "motley towing combination".<ref name=Mill18.20/> Arriving in Carnarvon on the afternoon of 27 November, the Germans were relocated from the boats to ''Centaur''{{'}}s cargo holds, where they were joined by their colleagues who had reached shore and [[Australian Army]] guards.<ref name=Mill18.20/> The last boat, carrying 70 Germans and two Chinese, was spotted from the air at {{Coord|25|4|S|112|4|E|display=inline|type:event}} during the late morning of 27 November and was recovered shortly after by HMAS ''Yandra''.<ref name=Frame8>Frame, ''HMAS Sydney'', p. 8</ref><ref>Olson, ''Bitter Victory'', pp. 56–7</ref> On 28 November, HMAS ''Wyrallah'' found a German lifeboat and two four-man life rafts, one of which was carrying a dead German sailor, who was [[buried at sea]].<ref name=Frame8/>

{{Location map many|Australia Shark Bay|float=right|width=300
|alt=Map of the Shark Bay region of Western Australia. There are seven red dots, indicating the locations where lifeboats were recovered or made landfall. A cyan dot marking the location of Carnarvon and a steel dot marking the claimed battle site are included for reference
|caption=Recovery of survivors
|coordinates1={{coord|24|35|S|110|57|E}}| position1=bottom|label1=''Aquitania''
|coordinates2={{coord|24|06|S|111|40|E}}| position2=left|label2=''Trocas''
|coordinates3={{coord|24|07|S|112|46|E}}| position3=top|label3=''Koolinda''
|coordinates4={{coord|24|39|S|112|15|E}}| position4=bottom|label4=''Centaur''
|coordinates5={{coord|24|04|S|112|04|E}}| position5=top|label5=''Yandra''
|coordinates6={{coord|24|09|42|S|113|27|09|E}}|position6=bottom|label6=17-Mile Well
|coordinates7={{coord|24|03|S|113|27|E}}| position7=right|label7=Red Bluff<!-- location needs to be verified -->
|mark8=Cyan pog.svg|coordinates8={{coord|24|53|S|113|39|E}}|position8=bottom|label8=Carnarvon
|mark9=Steel pog.svg|coordinates9={{coord|26|S|111|E}} |position9=right |label9=Reported battle site
}}

The search was terminated at sunset on 29 November.<ref name=Frame8/> All of the German lifeboats were accounted for: between them, 318{{efn|Other sources state that 317 survived, including two Chinese.<ref name=Gill452/> The third Chinese sailor was aboard the lifeboat found by ''Centaur'': as ''Eurylochus'' was owned by the [[Blue Funnel Line]], while ''Centaur'' belonged to the [[subsidiary]] Ocean Steamship Company, he was integrated into ''Centaur''{{'}}s crew instead of being handed over with the Germans.<ref name=Winter183/>}} of ''Kormoran''{{'}}s 399 personnel survived.<ref name=Winter183/><ref>Olson, ''Bitter Victory'', p. 308</ref> Conversely, none of 645 from ''Sydney'' were found. The only definite remains from the Australian warship were an inflatable lifebelt located by HMAS ''Wyrallah'' on 27 November (the discovery of a second RAN lifebelt by the merchant ship ''Evagoras'' that same day was initially reported but later found to be false) and a damaged [[Carley float]] discovered by HMAS ''Heros'' on 28 November.<ref name=Frame8/><ref>Olson, ''Bitter Victory'', p. 72</ref> A second Carley float [[#Thomas Welsby Clark|was discovered off Christmas Island]] on 6 February 1942 some {{#expr: {{JULIANDAY|1942|02|06}} - {{JULIANDAY|1941|11|19}} }} days after the battle,<ref>Olson, ''Bitter Victory'', pp. 328–32</ref> carrying the remains of 21-year-old Able Seaman [[Thomas Welsby Clark]], identified by [[DNA testing]] in 2021 almost 80 years after the battle.

==Aftermath==
On 26 November, the Naval Board distributed lists of ''Sydney''{{'}}s ship's company to all naval district offices.<ref name=Frame7/> Telegrams to next-of-kin stating that their relatives were "missing as a result of enemy action" were lodged, although naval censors advised the media that no announcements relating to the cruiser be made.<ref name=Frame7/> Despite this, rumours about the ship's loss were circulating, fuelled by the lack of information to substantiate the "missing" telegrams.<ref name=Frame8/><ref name=Dennis118>Dennis, in ''Zombie Myths of Australian Military History'', p. 118</ref> Australian Prime Minister [[John Curtin]] officially announced the loss of the cruiser on the afternoon of 30 November.<ref>Frame, ''HMAS Sydney'', p. 10</ref> Censorship restrictions on the newspapers were lifted to publish the statement, but radio stations were instructed to wait 48 hours before broadcasting the news to avoid alerting any other German ships in the area.<ref>Olson, ''Bitter Victory'', p. 94</ref><ref name=Mearns48>Mearns, ''The Search for the Sydney'', p. 48</ref> Several Melbourne stations disobeyed and were temporarily suspended from broadcasting.<ref>Frame, ''HMAS Sydney'', p. 279</ref> Curtin made a second announcement three days later, providing some detail about the battle.<ref name=Mearns48/>

The destruction of ''Sydney'' with all hands was a major blow to morale: it was the largest loss of life in the history of the RAN, and the ship's company made up over 35% of RAN naval personnel killed during World War II.<ref name="Jeans"/> This was compounded by the loss of {{HMAS|Parramatta|U44|6}}, which was sunk by a German U-boat on 27 November; news of this was announced a day after ''Sydney''{{'}}s fate was made public.<ref>Goldrick, in ''The Royal Australian Navy'', p. 124</ref><ref>Montgomery, ''Who Sank the Sydney?'', p. 204</ref> However, the battle was not widely reported in other Allied nations, as it was a small loss compared to contemporary naval incidents — the aircraft carrier {{HMS|Ark Royal|91|6}} and the battleship {{HMS|Barham|04|6}} were sunk in separate incidents during the same two-week period — and was quickly eclipsed by Japan's attacks on [[Attack on Pearl Harbor|Pearl Harbor]] and [[Battle of Singapore|Singapore]] in early December.<ref>Olson, ''Bitter Victory'', p. 73</ref> ''Sydney'' was the largest Allied ship to be lost with all hands during the war.<ref>Grubel, ''Australian judge to examine wartime ship loss''</ref>

In Germany, news of the battle was assembled from communications intercepts during the search for survivors, which was combined with Allied news articles to assemble an account of the battle and published in early 1943 for internal consumption by German officials.<ref>Hore, in ''The Royal Australian Navy in World War II'', p. 84</ref> The events were made public in December 1943, after the early accounts were confirmed by a sailor from ''Kormoran'' sent home in a prisoner exchange.<ref>Hore, in ''The Royal Australian Navy in World War II'', pp. 77–8</ref>

===Interrogation of survivors===<!-- The heading is linked to from other articles -->
{{anchor|Interrogation of survivors}}

Interrogation of the German survivors to discover the fate of ''Sydney'' began on 25 November.<ref name=Frame80>Frame, ''HMAS Sydney'', p. 80</ref> This was initially hampered, as the sailors had been ordered to obfuscate the enemy by falsely answering all questions.<ref name=Frame80/> Many did not follow this instruction, but their accounts included second-hand information of varying reliability.<ref name=Frame104/> Several groups were quickly combined and had the opportunity to standardise any falsification. Those who made landfall in two separate groups were combined, then placed aboard ''Centaur'' with the men from Detmers' lifeboat.<ref name= Frame80.1>Frame, ''HMAS Sydney'', pp. 80–1</ref> However, some efforts were made to keep officers separated from the sailors; Detmers and his executive officer were initially held aboard HMAS ''Yandra'', then transported overland to Fremantle, and while all of the sailors were interned at a camp near [[Harvey, Western Australia|Harvey]], the officers were imprisoned at [[Campbell Barracks (Western Australia)|Campbell Barracks]].<ref name=Frame80.1/> Not all groups had this opportunity; the survivors rescued by ''Aquitania'' were delivered to Sydney, and interrogations of these men showed the same commonalities and inconsistencies as the main body of interviews.<ref name=Frame106>Frame, ''HMAS Sydney'', p. 106</ref> In addition, some of the Germans were interviewed, formally or informally, prior to their group reuniting with others; the independent accounts provided the same common elements.<ref>Cole, ''The Loss of HMAS Sydney II'', vol. 1, pp. 338–9, 366–7</ref> Based on this, it was concluded that the true story was being given and that there were no widespread attempts to falsify accounts.<ref name=Frame106/><ref>Cole, ''The Loss of HMAS Sydney II'', vol. 1, p. 393</ref>
[[File:Kormoran senior officers.jpg|thumb|left|alt=Ten naval officers in uniform sitting for a group portrait: four sitting on a bench, with the other six standing behind. A large, flat-roofed building, two trees, and some scattered people can be seen in the background|Senior officers from ''Kormoran'' sitting for a group portrait while interned at Dhurringile. Detmers is the second from right in the front row.]]

After the main interrogations were completed, the Germans were moved from Fremantle to [[Murchison, Victoria]] during late December and early January, the officers aboard the liner [[MV Duntroon|''Duntroon'']] and the sailors overland on two trains.<ref name=Olson111>Olson, ''Bitter Victory'', p. 111</ref> The sailors were placed in [[No. 13 Prisoner of War Camp]], which already hosted 1,200 soldiers of the ''[[Afrika Korps]]'' and their shipmates rescued by ''Aquitania'', while officers were sent to the nearby [[HM Prison Dhurringile|Dhurringile homestead]].<ref name=Olson111/><ref name=Frame83>Frame, ''HMAS Sydney'', p. 83</ref> Some further interrogations were carried out after this point.<ref name=Frame83/> [[Covert listening device|Listening devices]] were planted in the prisoners' quarters, and intelligence agents infiltrated the camp, but neither method provided new information.<ref>Frame, ''HMAS Sydney'', p. 107</ref>

One sailor died in captivity from lung cancer on 24 March 1942 and was buried in the [[Tatura, Victoria|Tatura]] war cemetery.<ref>Winter, ''H.M.A.S. Sydney'', pp. 199–200</ref> On 11 January 1945, Detmers and 19 other Axis officers escaped from Dhurringile through a tunnel excavated during the previous seven months; all were recaptured within days.<ref name=Frame108>Frame, ''HMAS Sydney'', p. 108</ref> Detmers was found with a German-English dictionary which contained two encrypted accounts of the battle (a deck log or action report, and an engineering log), although these provided little new information.<ref>Olson, ''Bitter Victory'', pp. 190, 193</ref> Shortly after returning to the camp, Detmers was hospitalised for three months following a stroke.<ref name=Frame108/> The German officers and sailors were repatriated after the war, departing from Port Phillip Bay with other Axis prisoners aboard the steamer ''Orontes'' on 21 February 1947.<ref name= Frame109>Frame, ''HMAS Sydney'', p. 109</ref> Coincidentally, tied up to the opposite pier was the real ''Straat Malakka''.<ref name=Frame109/> On arrival in [[Cuxhaven]], the prisoners were searched before leaving the ship; several written reports were confiscated, although nothing new was learned from these.<ref>Frame, ''HMAS Sydney'', pp. 109–10</ref>

===Honours and awards===
For sinking ''Sydney'', Detmers' [[Iron Cross]] First Class (Eisernes Kreuz 1. Klasse) was upgraded to the [[Knight's Cross of the Iron Cross]] (Ritterkreuz des Eisernen Kreuzes).<ref name=Frame83/> ''Kormoran''{{'}}s executive officer, gunnery officer, and a sailor who manned the starboard {{convert|37|mm|in|adj=on}} gun were awarded the Iron Cross First Class (for the executive officer, this was a [[medal bar|bar]] to a previous Iron Cross), while the rest of the ship's company were all awarded the Iron Cross Second Class.<ref>Frame, ''HMAS Sydney'', p. 84</ref>

''Sydney'' was granted the [[battle honour]] "''Kormoran'' 1941" in recognition of the damage done to ''Kormoran''.<ref name=Cassells151/> This was one of only three honours awarded during the 20th century for the sinking of a single ship—rather than a lengthy [[Military operation|operation]] in a [[military campaign]]—and the second granted to a ship named ''Sydney''.{{efn|The first 'action honour' was awarded to the Town-class light cruiser {{HMAS|Sydney|1912|6}} for her defeat of the German light cruiser {{SMS|Emden|1908|6}} at the [[Battle of Cocos]] in 1914. The third, not received by any ship named ''Sydney'', was for ships involved in the [[Last battle of the battleship Bismarck|pursuit and last battle]] of the {{ship|German battleship|Bismarck||6}} in 1941.}}<ref>Cassells, ''The Capital Ships'', p. 207</ref>

==Post-war searches==
{{Main article|Search for HMAS Sydney and German auxiliary cruiser Kormoran}}
Despite the approximate position of ''Kormoran'' being known (most German accounts giving the battle coordinates as {{Coord|26|S|111|E|display=inline|type:event}}), the required search area for both ships was unfeasibly large.<ref>Olson, ''Bitter Victory'', p. 47</ref><ref>JCFADT, ''Report on the loss of HMAS Sydney'', p. 138</ref> This was due to the lack of a detailed location. This problem was compounded by supporters of alternative engagement theories, who believed that the Germans were lying and that the ships would be found further south and closer to shore.<ref>Mearns, ''The Search for the Sydney'', pp. 80, 90–2, 96–7</ref><ref name=Frame225>Frame, ''HMAS Sydney'', p. 225</ref><ref name=McCarthy5/>

The survey ship {{HMAS|Moresby|1963|6}} conducted multiple unsuccessful searches for ''Sydney'' and ''Kormoran'' between 1974 and 1991, when the ship was based in Fremantle.<ref name= JCFADT139>JCFADT, ''Report on the loss of HMAS Sydney'', p. 139</ref> {{HMAS|Protector|ASR 241|6}} conducted another search in July 1997.<ref name=JCFADT139/> However, all RAN surveys were restricted to the [[continental shelf]], as the navy did not possess the technology to search the seabed off the shelf effectively.<ref name=JCFADT139/> The searches were not exhaustive. They were primarily a response to civilian claims that the wreck site was at a particular location, with the survey ship sent to prove or disprove the claim.<ref name=McCarthy2.3>McCarthy, ''A précis of search-related events'', pp. 2–3</ref> Other searches were conducted by aircraft of the Royal Australian Air Force carrying [[magnetometer]]s; again, these were only in response to claims of possible locations.<ref name=McCarthy2.3/>

In 1990, the [[Woods Hole Oceanographic Institution]] (WHOI) was approached to join a [[Western Australian Maritime Museum]]-led search for ''Sydney'' and ''Kormoran'', which was agreed to on the condition that the search area be narrowed considerably.<ref name=McCarthy3.4>McCarthy, ''A précis of search-related events'', pp. 3–4</ref> This was attempted at a 1991 forum: although the battle's location was generally agreed upon, because the exact fate and time of sinking for ''Sydney'' were unknown, the possible site could not be more accurately determined.<ref name=McCarthy3.4/> WHOI staff did not believe that the search area could be sufficiently narrowed down—shipwreck hunter [[Robert Ballard]] commented that searching for the ships could not be described as a [[wikt:needle in a haystack|needle in a haystack]] "because the haystack has not yet been found"—and the WHOI withdrew its support.<ref name=Frame225/><ref name=McCarthy3.4/>

Following the 1999 government report into the Australian cruiser's loss, which recommended that a seminar be organised to attempt again to identify the most likely search area for the warships, the HMAS Sydney Location Seminar was organised by the RAN's Sea Power Centre and held at the Western Australian Maritime Museum.<ref>McCarthy, ''A précis of search-related events'', pp. 6–7</ref> However, participants in the seminar could not agree on whether the battle location given by the Germans (referred to as the "northern position") or a point off the [[Houtman Abrolhos|Abrolhos Islands]] (the area for the battle advocated by supporters of the "southern position") was more likely to contain the two ships.<ref>McCarthy, ''A précis of search-related events'', p. 7</ref> In 2002, a coalition of oil and gas companies involved in the [[North West Shelf Venture]] performed a [[wikt:gratis|gratis]] search of eight suspected targets in the proposed southern area.<ref name=McCarthy8>McCarthy, ''A précis of search-related events'', p. 8</ref> No evidence was found of shipwrecks at any of the eight sites, although supporters of this search area claimed that the equipment used was defective and rejected the findings.<ref name=McCarthy8/> Subsequent examination of the most popular southern site by [[DOF Subsea]] Australia vessel SV ''Geosounder'' in March 2007 found no evidence of a shipwreck, the two searches firmly discrediting the alternative engagement area.<ref name=McCarthyPrecis8.9/>

===Wreck discovery===
American shipwreck hunter [[David Mearns]] first learned of ''Sydney'' and ''Kormoran''<nowiki/>'s battle and mutual destruction during a conference in 1996 and started studying the battle in 2001.<ref>Mearns, ''The Search for the Sydney'', pp. 61–77</ref> Mearns focused on primary source documents, which led him to believe that German accounts of the battle's location were truthful. He convinced the RAN that a search around that area was feasible.<ref>Mearns, ''The Search for the Sydney'', pp. 80–93, 121</ref> Mearns's organisation partnered with HMAS Sydney Search Pty. Ltd., a not-for-profit company set up to support a search for ''Sydney'', in late 2004.<ref>Mearns, ''The Search for the Sydney'', pp. 95, 108</ref> In mid-September 2004, the German government granted Mearns permission to film ''Kormoran'' if she were found.<ref>Mearns, ''The Search for the Sydney'', p. 104</ref> On 14 August 2005, the Australian government announced a A$1.3 million grant to the Finding Sydney Foundation (a charitable foundation set up by the directors of HMAS Sydney Search to manage funding), which was followed by A$500,000 from the Western Australian government and A$250,000 from the government of New South Wales.<ref>Mearns, ''The Search for the Sydney'', pp. 110, 252</ref> Companies and the public made small donations, but it was not until the Australian government approved another A$2.9 million in October 2007 that the search could proceed.<ref>Mearns, ''The Search for the Sydney'', pp. 113–5</ref><ref>McCarthy, ''A précis of search-related events'', p. 9</ref> Even so, the money raised only permitted the chartering of the survey vessel SV ''Geosounder'' for 45 days.<ref name=Mearns126.7>Mearns, ''The Search for the Sydney'', pp. 126–7</ref>

Mearns' plan was to determine a 'search box' for ''Kormoran'' by plotting the possible starting points of the two rafts from the raider through a reverse drift analysis.<ref name=Mearns121.2>Mearns, ''The Search for the Sydney'', pp. 121–2</ref> This search box (calculated to be {{convert|52|by|34|nmi}} in size) would then be inspected over several days with a [[side-scan sonar]] towed by ''Geosounder''.<ref>Mearns, ''The Search for the Sydney'', pp. 121–2, 137</ref> Mearns focused on finding ''Kormoran'' first: the German wreck's approximate location could be predicted, and while the same was not true for ''Sydney'', there was a wealth of information indicating her position relative to ''Kormoran''.<ref>Mearns, ''The Search for the Sydney'', pp. 121–2, 150–1</ref> After locating one or both vessels, ''Geosounder'' would return to port and embark a [[remotely operated vehicle]] (ROV) to film the wrecks.<ref name=Mearns126.7/> ''Geosounder'' reached the southeast corner of the search box just before midnight on 4 March, but recurring faults with the sonar and the effects of [[2007–08 Australian region cyclone season#Tropical Cyclone Ophelia|Tropical Cyclone Ophelia]] hampered the early days of the search.<ref>Mearns, ''The Search for the Sydney'', pp. 136–43</ref> ''Kormoran'' was located during the afternoon of 12 March: the ship had been torn apart by the mine deck detonation, with two large pieces sitting {{convert|2560|m|ft}} below sea level and {{convert|1300|m|ft}} apart, with an oval-shaped debris field between them, centred at {{Coord|26|05|46|S|111|04|33|E|display=inline|type:event}}.<ref>Mearns, ''The Search for the Sydney'', pp. 143–9, 216–7</ref> Australian Prime Minister [[Kevin Rudd]] announced the raider's discovery on the morning of 17 March.<ref>Mearns, ''The Search for the Sydney'', p. 157</ref>

{{Location map many|Australia Shark Bay|float=right|width=300
|alt=Map of the Shark Bay region of Western Australia. There are two steel-coloured dots near the bottom left corner, indicating the locations of the two wrecks. A cyan dot marking the location of Carnarvon and a red dot indicating the reported site of the battle.
|caption=Location of the two wrecks off Shark Bay
|mark1=Steel pog.svg|coordinates1={{coord|26|05|49.4|S|111|4|27.4|E}}|position1=right|label1=Kormoran
|mark2=Steel pog.svg|coordinates2={{coord|26|14|37|S|111|13|3|E}}|position2=bottom|label2=Sydney
|mark3=Cyan pog.svg|coordinates3={{coord|24|53|S|113|39|E}}|position3=bottom|label3=[[Carnarvon, Western Australia|Carnarvon]]
|coordinates4={{coord|26|S|111|E}}|position4=top|label4=Reported battle site
}}
Using the wreck location and the German observations of ''Sydney'' after the battle, a {{convert|20|by|18|nmi|adj=on}} search box for the cruiser was calculated.<ref name=Mearns150.1>Mearns, ''The Search for the Sydney'', pp. 150–1</ref> ''Sydney'' was located just after 11:00 on 17 March 2008, only hours after ''Kormoran''{{'}}s discovery was made public.<ref>Mearns, ''The Search for the Sydney'', pp. 157–8</ref> Prime Minister Rudd announced the find a day later.<ref>Mearns, ''The Search for the Sydney'', p. 160</ref> ''Sydney''{{'}}s wreck was located at {{Coord|26|14|31|S|111|12|48|E|display=inline|type:event}} at {{convert|2468|m|ft}} below sea level: the bow of the cruiser had broken off as the ship sank and was located at the opposite end of a debris field stretching {{convert|500|m|ft}} north-west from the hull.<ref>Mearns, ''The Search for the Sydney'', pp. 158–60, 204–5</ref><ref>Cole, ''The Loss of HMAS Sydney II'', vol. 2, p. 217</ref> The two wrecks were {{convert|11.4|nmi}} apart, with ''Sydney'' to the southeast.<ref>Mearns, ''The search for the Sydney'', p. 204</ref> On discovery, both wrecks were placed under the protection of the ''[[Historic Shipwrecks Act 1976]]''.<ref>Mearns, ''The Search for the Sydney'', p. 169</ref> The wrecks were added to the [[Australian National Heritage List]] on 14 March 2011.<ref>Australian Associated Press, ''HMAS Sydney makes heritage list''</ref>

''Geosounder'' returned to Geraldton on 20 March, but delays in installing and testing the ROV prevented departure until 29 March, with the ship sailing through the path of [[2007–08 Australian region cyclone season#Severe Tropical Cyclone Pancho|Cyclone Pancho]].<ref>Mearns, ''The Search for the Sydney'', pp. 165, 168, 170–72</ref> ''Sydney'' was the first to be inspected; electrical problems with the ROV set the start of filming back to 3 April.<ref>Mearns, ''The Search for the Sydney'', pp. 173–4</ref> Six ROV dives were made over five days, during which the main hull and debris field were inspected, filmed, and documented.<ref>Mearns, ''The Search for the Sydney'', p. 189</ref> The damage found by the search team corresponded with the descriptions given by ''Kormoran'' survivors after the battle.<ref>Mearns, ''The Search for the Sydney'', pp. 183, 186–7, 198</ref> After the conclusion of ROV operations near ''Sydney'', ''Geosounder'' travelled to the wreck of ''Kormoran''.<ref name=Mearns216.7>Mearns, ''The Search for the Sydney'', pp. 216–7</ref> The search was declared complete just before midnight on 7 April.<ref>Mearns, ''The Search for the Sydney'', p. 228</ref>

In April 2015, [[Curtin University]] and the [[Western Australian Museum]] made an expedition to the wrecks. Their objective was to use 3D imaging to map the wreck sites for further study and to determine if any deterioration since the 2008 discovery required developing a conservation management plan.<ref>Mundy, ''HMAS Sydney wreck to be recorded in safeguard mission''</ref> During the week-long expedition, 30 hours of video footage and 700,000 still images were generated by two ROVs.<ref>Haun,'' WWII Shipwrecks Photographed off Australia''</ref>

==Analysis==

===Historiography===
The first collected historical account of the engagement was published in 1947 in [[George Hermon Gill]]'s ''Royal Australian Navy, 1939–1942'', the first of two RAN volumes in the government-sponsored ''[[Australia in the War of 1939–1945]]'' series.<ref name=Frame132>Frame, ''HMAS Sydney'', p. 132</ref><ref>Olson, ''Bitter Victory'', p. 74</ref> Because of the book's scope, the account of the battle was brief, and Gill accepts the German interpretation of events while blaming Burnett for endangering his ship.<ref name=Frame132/> Naval historian [[Tom Frame (bishop)|Tom Frame]] described the account as "bland and unemotional" and "necessarily superficial", but Gill's analysis of the battle is attacked by Frame as "seriously flawed, inconsistent and contradictory".<ref>Frame, ''HMAS Sydney'', pp. 132, 152</ref> Several [[biography|biographical]] and [[autobiography|autobiographical]] works which touched on the battle (including books by Detmers and former ''Sydney'' commander John Collins) were also published around this time; none of these contributed new information.<ref name=Frame129.35>Frame, ''HMAS Sydney'', pp. 129–35</ref>

Michael Montgomery's 1981 book, ''Who Sank The Sydney?'', was the first published work to focus solely on ''Sydney'' and the events surrounding her loss and the first to comprehensively challenge the accepted view of the battle.<ref name=Frame135>Frame, ''HMAS Sydney'', p. 135</ref> The son of ''Sydney''{{'}}s Royal Navy navigator, Montgomery, could not accept the ship's loss as described by Gill, and he claimed that the true events were being covered up.<ref>Frame, ''HMAS Sydney'', pp. 135–6</ref> According to his book, ''Kormoran'' had fired on ''Sydney'' while flying the flag of a neutral nation, a Japanese submarine was involved in the battle, and any Australian survivors were killed to hide the involvement of the Japanese.<ref>Frame, ''HMAS Sydney'', pp. 137–8</ref><ref>Montgomery, ''Who Sank The Sydney?'', pp. 109, 135–7, 154–5, 188, 200–2</ref> Montgomery also suggests that the [[Government of the United Kingdom|British government]] [[Pearl Harbor advance-knowledge debate|had foreknowledge of]] the Japanese [[attack on Pearl Harbor]], which occurred three weeks later, and ordered the Australian government to cover up the truth of ''Sydney''{{'}}s loss so the United States would be drawn into the war.<ref name=Jeans/><ref name=Montgomery205>Montgomery, ''Who Sank The Sydney?'', p. 205</ref> ''Who Sank the Sydney?'' is reliant on assertions that had been proved false, unreliable sources (including a 'sailor's report' found to be a translation of an inaccurate Australian newspaper article), and selective use of German accounts that fit the hypothesis. Montgomery is generally credited with igniting the [[#Controversy|controversy surrounding the battle]].<ref name=Frame135.9>Frame, ''HMAS Sydney'', pp. 135–9</ref><ref name=Onlson74.5/>

Although not written as such, the 1984 ''HMAS Sydney: Fact, Fantasy and Fraud'' by Barbara Winter served as a reply to Montgomery's work.<ref name=Frame140.1>Frame, ''HMAS Sydney'', pp. 140–1</ref> Winter used material from German and American archives in addition to Australian sources, with the main thrust of her work comparing the relative experience and competence of Burnett and Detmers, which supported the accepted view of the battle.<ref name=Frame140.1/> In her work, Winter also sought to identify and prove false all the rumours and theories that had appeared since the battle.<ref>Frame, ''HMAS Sydney'', p. xiii</ref> Frame describes her work as "reasonable and persuasive... [h]owever, she tried too hard to defend the crew of the ''Kormoran''... at the expense of ''Sydney''", while a government report in 1999 observed that Winter's defence of the German accounts saw her become the "[[wikt:bête noire|bête noire]] of those who sought, and continue to seek, darker explanations of the ''Sydney'' tragedy".<ref name=Frame140.1/><ref>JCFADT, ''Report on the loss of HMAS Sydney'', p. 12</ref>

In 1991, the HMAS Sydney Forum was convened by the Western Australian Museum; its goals were to seek a consensus view of the battle and collect suggestions on how and where searches for ''Sydney'' and ''Kormoran'' should occur.<ref name=JCFADT14>JCFADT, ''Report on the loss of HMAS Sydney'', p. 14</ref> Interested parties, including Montgomery, Winter, and Frame, were brought together for the three-day forum, but instead of reconciling different views of the battle, the forum only served to split the participants further.<ref name=JCFADT14/> Prompted by the outcome, Frame wrote ''HMAS Sydney: Loss and Controversy''.<ref name=McCarthy/> Published in 1993, this was the first book dedicated to the subject authored by a naval officer or a trained historian. In addition to analysing the battle and its aftermath, it looked at the [[historiography]] to date and the development of the controversy.<ref>Frame, ''HMAS Sydney'', pp. xii–xiii</ref><ref>JCFADT, ''Report on the loss of HMAS Sydney'', p. 13</ref> Frame's work was pro-RAN and supportive of Burnett, and while he dismissed many of the alternative claims made regarding the battle, he felt that those involving German duplicity were plausible.<ref>Frame, ''HMAS Sydney'', p. xiv</ref><ref>Cole, ''The Loss of HMAS Sydney II'', vol. 2, pp. 3–5</ref> A second forum was hosted in 1997 by the End Secrecy on Sydney group, but the antagonism between holders of different interpretations of the battle meant the forum "degenerated into a partisan verbal melee".<ref name=JCFADT14/> An ''Inquiry into the loss of HMAS Sydney'' was carried out by the [[Joint Standing Committee for Foreign Affairs, Defence and Trade]] (JCFADT) between 1997 and 1998 and was [[table (verb)#Commencing discussion|tabled]] in March 1999.<ref name=Mearns233.5/><ref name=JCFADT1>JCFADT, ''Report on the loss of HMAS Sydney'', p. 1</ref> The JCFADT inquiry received over 400 submissions and compiled over 500 pages of oral testimony.<ref name= JCFADT1/> However, the report was indecisive, and despite finding there was no evidence to support the various controversial claims made about the battle, it failed to end debates between holders of the various viewpoints: a debate that was said to have "become a dialogue of the deaf".<ref name=JCFADT14/><ref name=Mearns233.5/>

Several more books about the battle were published. Frame's book was updated and republished in 1998.<ref name=McCarthy>McCarthy, ''The HMAS Sydney/HSK Kormoran engagement''</ref> Wesley Olson's ''Bitter Victory: the death of HMAS Sydney'', published in 2000, was a re-examination of the evidence, including comparisons with similar naval engagements and sinkings, which supported the accepted view of the battle.<ref name=McCarthy/><ref name=3Cole10>Cole, ''The Loss of HMAS Sydney II'', vol. 3, p. 10</ref> Glenys McDonald's 2005 work ''Seeking the Sydney: a quest for truth'' did not attempt an analysis of records and interrogation transcripts. Instead, it used accounts from people who claimed to have observed the battle or been involved in the search, rescue, or interrogation to compile an [[oral history]] of the engagement and its aftermath.<ref name=3Cole10/> Her research led her to believe that the battle had occurred much closer inshore than claimed by the Germans.<ref name=McCarthy5>McCarthy, ''A précis of search-related events'', p. 5</ref> The 2005 book ''Somewhere below: the Sydney scandal exposed'' by John Samuels took an extreme view on the alternative engagement theory by claiming that ''Sydney'' was sunk by a Japanese submarine with little or no involvement by ''Kormoran'' and that there was a wide-ranging cover-up of the proof.<ref name=Lewis>Lewis, ''Leaping to conclusions in tale of Sydney's sinking''</ref>

Samuels cites no reliable sources and ignores or dismisses evidence supporting the accepted view as part of the cover-up; one review states that the book only brings suffering to the relatives of those killed and is on par with the [[Roswell UFO incident]] as a conspiracy theory.<ref name=Lewis/> Also in 2005, Brett Manning used the alternative theories of the battle as the basis for the [[spy novel]] ''Enduring Deception'', in which an American agent must cover up the cruiser's encounter with a Japanese submarine so the Pearl Harbor attack occurs without warning, drawing the United States into the war.<ref>Harvey, ''WA book revives war mystery''</ref> There were also many deliberate hoaxes, some contributing to the controversies; the most damaging were claims that the wrecks had been located, hindering serious attempts to mount a search while military assets were used to check the sites.<ref name=McCarthyPrecis8.9>McCarthy, ''A précis of search-related events'', pp. 8–9</ref><ref>McCarthy, ''An insight into the Genesis and Evolution of the HMAS Sydney Controversy'', pp. 11–14</ref> One not only involved a claim to have located the wreck off Dirk Hartog Island, but it also referred to the location of a grave there.<ref>McCarthy, ''An insight into the Genesis and Evolution of the HMAS Sydney Controversy'', p. 12</ref>

Military historian Dr Tom Lewis OAM, then a serving naval officer, wrote several analytical articles about the controversies surrounding the battle, all of which argued in favour of the ''Kormoran'' account. "What may the wreck of the Sydney reveal", published in ''Warship'' Vol 42; the RUSI Journal ''United Service'' in Feb 2008, and in the Australian Naval Institute's ''Headmark'' in Dec 2007, was the first battle-damage assessment of what the wreck of the ''Sydney—''if it was found—would look like. Lewis argued that if the wreck damage matched the article, it would show the ''Kormoran'' account was accurate. Following the discovery of the two ships, the damage did indeed match the article. Lewis also argued in "The truth about Sydney – conspiracy theorists should crawl back into the bilges." ''Wartime'' magazine, Issue 45, that speculation the ''Sydney'' crew were massacred was damaging to the well-being of the families concerned.

Following the discovery of the wrecks, a second inquiry into the loss of ''Sydney'' was held, this time by the [[Department of Defence (Australia)|Department of Defence]].<ref name= Mearns233.5>Mearns, ''The Search for the Sydney'', pp. 233–5</ref> The inquiry was presided over by [[Terence Cole (jurist)|Terence Cole]], an expert in maritime law and a former Deputy Judge Advocate General.<ref>Mearns, ''The Search for the Sydney'', p. 234</ref> Cole's findings were published in a three-volume report in July 2009, with one volume focusing specifically on assessing the various controversies and alternative theories surrounding the battle.<ref name=Nicholson>Nicholson, ''The truth of their deadly battle''</ref> The inquiry concluded that Burnett was responsible for placing his ship in danger but stopped short of claiming negligence. It also found no evidence to support any of the alternative theories investigated.<ref name=Nicholson/> A month later, shipwreck hunter David Mearns published an account of the search for the two ships: ''The Search for the Sydney: How Australia's greatest maritime mystery was solved''.<ref>''Battle behind Sydney's finding revealed'', in ''The West Australian''</ref> Dr Tom Lewis published "What has the wreck of the Sydney told us?" in ''Warship'' magazine Issue 44 and "Needles and Haystacks – Why finding the wreck of the ''Sydney'' was so difficult" in the Australian War Memorial's ''Wartime'' magazine, Issue 43.

===Controversy===<!-- This heading is linked to from other articles -->
{{anchor|Controversy}}
Rumours that the battle was not what it seemed commenced almost as soon as ''Sydney'' failed to reach Fremantle on schedule, some emanating from the highest levels in the administration,<ref>McCarthy, M., 2009. An insight into the Genesis and Evolution of the HMAS Sydney Controversy. Prepared for the HMAS Sydney II Commission of Inquiry. Western Australian Museum, Department of Maritime Archaeology, Report No 243. Available in PDF form www.defence.gov.au/sydneyii/WAM/WAM.070.0010.pdf</ref> but it was not until Montgomery's ''Who Sank The Sydney?'' that a published work collated these rumours and challenged the accepted view of the battle.<ref name= Frame135/> Frame and Olson both credit Montgomery with igniting the controversy; the former describes Montgomery's work as "a [[polemical]], finger-pointing, brawling account" which, if not deliberately prepared to create a controversy, had that effect, while the latter claimed that the book only "sparked debate [and] opened old and new wounds".<ref name=Frame135.9/><ref name= Onlson74.5>Olson, ''Bitter Victory'', pp. 74–5</ref> The controversial views have been maintained and propagated by several organisations, such as the Sydney Research Group and End Secrecy on Sydney, and authors like McDonald and Samuels.<ref>Cole, ''The Loss of HMAS Sydney II'', vol. 3, pp. 5, 10</ref>

Much controversy surrounding the battle stemmed from disbelief that a modified merchant ship could defeat a modern cruiser, with most theories describing how the Germans deceitfully gained the advantage.<ref name=Goldrickopp96>Goldrick, in ''The Royal Australian Navy'', opp. p. 96</ref> However, the two ships' armament was closer to equal than this matchup implied, and although ''Sydney'' had the benefit of armour plate and superior range, these were lost by closing with ''Kormoran''.<ref name=Mearns193>Mearns, ''The Search for the Sydney'', p. 193</ref><ref name=Jenkins>Jenkins, ''Did a sub really fire the fatal torpedo?''</ref> The proximity meant that the advantage would go to the ship that fired first; while Burnett likely assumed that ''Sydney'' was dealing with a merchantman, Detmers was ready for ''Kormoran'' to surprise the cruiser, and the raider's gun crew knew where to aim for maximum effectiveness.<ref name=Mearns193/>

The main theories refer to:

====Improper use of flags====
These theories contend that Detmers acted illegally by firing before ''Kormoran'' raised her [[battle ensign]], flying a [[White flag#Contemporary use|white flag of surrender]] to trick Burnett into relaxing or using false [[signal flag]]s to indicate a medical or engineering emergency and lure ''Sydney'' in.<ref name=ColeV3pp259.61>Cole, ''The Loss of HMAS Sydney II'', vol. 3, pp. 259–61</ref> While it was a [[war crime]] for a ship to attack without flying her battle ensign or while flying a surrender flag, false distress signals were considered legitimate [[ruse of war|ruses]].<ref>Cole, ''The Loss of HMAS Sydney II'', vol. 3, p. 279</ref><ref name=Olson339.41>Olson, ''Bitter Victory'', pp. 339–41</ref>

All German accounts indicate that ''Kormoran'' lowered the Dutch flag and raised the German war ensign before the order to fire was given. However, a general distrust of German claims, plus the statement in Detmers' autobiography that it took six seconds to raise the flag, decamouflage, and start firing, led to questions.<ref>Cole, ''The Loss of HMAS Sydney II'', vol. 3, pp. 277–83</ref> Olson contends that in Detmers' original report, the "six seconds" figure encompassed only the flag-raising, with the meaning corrupted over time.<ref>Olson, ''Bitter Victory'', pp. 241–3</ref> Conversely, Frame considers the possibility as knowledge of doing so would have been limited to very few people.<ref>Frame, ''HMAS Sydney'', pp. 215–8</ref> He cites other parts of the autobiography, where Detmers repeatedly asserts that he had committed no crime and his fear of [[court martial|court-martial]] as indicating a guilty conscience.<ref>Frame, ''HMAS Sydney'', pp. 216–24</ref>

Winter traces the origin of the "surrender or distress" theory to a single newspaper article written just after the battle by a reporter with no access to the prisoners or naval intelligence.<ref>Winter, ''H.M.A.S. Sydney'', pp. 226–8</ref> Olson doubts that a surrender flag was used to lure ''Sydney'' in, as this would have informed Burnett that ''Straat Malakka'' was not what she seemed.<ref>Olson, ''Bitter Victory'', p. 340</ref> He considers that the Germans may have used false signals or pretended to scuttle, but only hypothetically.<ref name=Olson339.41/>

The 2009 Cole inquiry concluded that the German ensign was raised before the first shell was fired.<ref>Cole, ''The Loss of HMAS Sydney II'', vol. 3, p. 285</ref> Cole thought that the use of surrender or distress flags was an "invention of those seeking to find a justification" for the cruiser's close approach.<ref name=ColeV3pp259.61/>

====Japanese involvement====
The claim of Japanese involvement, specifically a submarine operating with ''Kormoran'', is based on several elements. The German survivors were found with milk bottles bearing Japanese labels.<ref name=Olson119>Olson, ''Bitter Victory'', p. 119</ref> Although cited as evidence that a Japanese submarine was supplying ''Kormoran'', the bottles were obtained from the supply ship ''[[Kulmerland (ship)|Kulmerland]]'', which had taken on supplies in Japan.<ref name=Olson119/> Sketches drawn by one of the interned Germans were believed to contain an account of the battle in the ''[[Deutsche Einheitskurzschrift]]'' [[shorthand]] system.<ref name=Frame158.60>Frame, ''HMAS Sydney'', pp. 158–60</ref> A civilian working for Australian military intelligence attempted to decode these. After relying on interpolation and speculation to make sense of the decoded characters and fill in the gaps, they came up with a message that included the phrase "a Japanese gunfire attack from Japan itself".<ref name=Frame158.60/> However, several shorthand experts consulted by Winter could find nothing resembling ''Einheitskurzschrift'' (or any other shorthand style) in the sketches.<ref name=Frame158.60/><ref>Winter, ''H.M.A.S. Sydney'', p. 233</ref>

According to Montgomery, the involvement of a submarine is supported by numerous sightings of submarines or submarine-like objects in Australian waters, particularly a sighting off Townsville in late October of six "strange boats" that surfaced, sprouted wings, and flew off; he interpreted this as a [[Submarine aircraft carrier|floatplane-carrying Japanese submarine]], which may have reached Carnarvon in time to attack ''Sydney''.<ref>Montgomery, ''Who Sank The Sydney?'', pp. 186–8</ref><ref>Frame, ''HMAS Sydney'', p. 160</ref> The Cole report noted that false submarine sightings are a common wartime occurrence.<ref>Cole, ''The Loss of HMAS Sydney II'', pp. 208, 210–1</ref> In addition, the positions of all 46 active Japanese submarines at the time of the battle have been accounted for: 28 were in Japanese waters preparing for the [[attack on Pearl Harbor]], seven were readying for operations in the South China Sea and the Philippines, nine were heading for the South China Sea, and two had just departed for patrols in the Pacific.<ref name=Jenkins/><ref>Frame, ''HMAS Sydney'', pp. 170–2</ref>

On several occasions, Japanese broadcasts stated that ''Sydney'' had been captured and towed to Japan or that personnel were interned in Japanese prisoner-of-war camps.<ref name=Olson120.2/> Post-war investigations found that these broadcasts were for propaganda purposes only.<ref name= Olson120.2>Olson, ''Bitter Victory'', pp. 120–2</ref> Claims that items from ''Sydney'' (such as [[Tally (cap)|cap tallies]]) were found in Japan after the war have also been aired, but further investigation found these to be based on unfounded speculation.<ref>Cole, ''The Loss of HMAS Sydney II'', vol. 3, pp. 291–3</ref>

There were suggestions over the years the Japanese submarine ''[[Japanese submarine I-124|I-124]]'', sunk off Darwin by ''HMAS Deloraine'' on 20 January 1942—some three months after the loss of the Sydney—contained information about the true fate of the ''Sydney'' or that herself may have been involved. Dr Lewis, who wrote ''Sensuikan I-124'', and ''Darwin's Submarine I-124'', contributed to the Cole inquiry, arguing strongly that this was impossible.

The lack of information about Japanese involvement is attributed to a wide-ranging cover-up of Japanese aggression prior to the [[attack on Pearl Harbor]] in an attempt to draw the United States into the war.<ref name=Jeans/><ref name=Montgomery205/><ref name=Frame138>Frame, ''HMAS Sydney'', p. 138</ref> Frame dismisses the suggested cover-up as an attempt to draw attention to the alternative interpretation of the battle by linking it to the [[Pearl Harbor advance-knowledge debate]].<ref name=Frame138/> The JCFADT report concluded that there was no evidence to support the presence of the Japanese.<ref>JCFADT, ''Report on the loss of HMAS Sydney'', pp. 63–4</ref> Cole's report concluded likewise and stated that the allegations made to 'prove' the presence of a submarine were factually wrong, lacked corroborating evidence, or otherwise did not support the claims.<ref>Cole, ''The Loss of HMAS Sydney II'', vol. 3, pp. 214–5, 218–9, 232</ref>

====No ''Sydney'' survivors====
The alternative engagement theories attribute the lack of survivors, corpses, or debris from ''Sydney'' to the need to eliminate evidence of German illegality or Japanese aggression.<ref name= Olson339.40>Olson, ''Bitter Victory'', pp. 339–40</ref> The recovered Carley float—with its damage attributed to machine-gun fire—is often presented as proof.<ref name=Olson339.40/>

The Australian War Memorial undertook a detailed analysis of the Carley float between 1992 and 1993 to determine the nature of the damage.<ref>Frame, ''HMAS Sydney'', p. 201</ref><ref>Olson, ''Bitter Victory'', p. 322</ref> Metallurgical testing of fragments found in the float showed them to be from German [[shell (projectile)|shells]], not German or Japanese machine gun bullets.<ref>Frame, ''HMAS Sydney'', p. 202</ref> The Chinese survivors are also cited as proof that no machine-gunning of Australian survivors took place, as if they had witnessed or learned of such an act, they too would have been killed to preserve the secret.<ref>JCFADT, ''Report on the loss of HMAS Sydney'', p. 96</ref>

The accepted view of the battle (based on German damage descriptions) is that the majority of ''Sydney''{{'}}s personnel were killed during the battle, with the rest dying when the cruiser sank.<ref name=Olson309.11>Olson, ''Bitter Victory'', pp. 309–11</ref><ref>JCFADT, ''Report on the loss of HMAS Sydney'', p. 91</ref><ref>Mearns, ''The Search for the Sydney'', pp. 208–9</ref> The [[Defence Science and Technology Organisation]] used Mearns' shipwreck footage for technical analysis of the damage to ''Sydney'', which showed it to be consistent with German accounts.<ref>Cole, ''The Loss of HMAS Sydney II'', vol. 2, pp. 215, 371</ref> The analysis predicted that up to 70% of those aboard were killed during the battle, either directly, from wounds, or by inhaling smoke and toxic gas.<ref name=2Cole357>Cole, ''The Loss of HMAS Sydney'', vol. 2, p. 357</ref> Mearns estimated that once the bow was lost, the rest of the cruiser's hull would have remained afloat for at most two minutes, and anyone remaining aboard would have been killed as the ship sank.<ref name=Mearns212.3>Mearns, ''The Search for the Sydney'', pp. 212–3</ref><ref>Cole, ''The Loss of HMAS Sydney'', vol. 2, pp. 366</ref> The Cole Report stated that ''Sydney''{{'}}s [[seakeeping]] ability would have rapidly deteriorated, hampering any evacuation efforts.<ref name=2Cole357.66>Cole, ''The Loss of HMAS Sydney'', vol. 2, pp. 357–66</ref> Open watertight doors show that some attempt to abandon ship was made.<ref name=Mearns212.3/> However, the presence of all but two of the ship's boats in the nearby debris field, plus indications that the davits for the two missing boats were shot away during the battle, led Mearns to believe that evacuation was attempted after the bow snapped off, but there was not enough time or seaworthy boats to do so.<ref name=Mearns212.3/>

The battle damage would have forced any Australian survivors to use Carley floats and personal lifebelts, which were only intended as short-term life preservers.<ref name= Olson309.11/><ref name=2Cole357.66/> Based on survival rates for contemporary warship losses, Olson determined that anyone who survived the sinking would have died from wounds, exposure, or drowning before the search commenced, and corpses would not have floated to the surface until after the search had been terminated.<ref>Olson, ''Bitter Victory'', pp. 319–20</ref> The higher survival rate from ''Kormoran'' was because, unlike ''Sydney'', the raider's boats and rafts were well equipped and mostly undamaged.<ref name=Olson309.11/><ref>Mearns, ''The Search for Sydney'', pp. 200–1</ref> Although ''Sydney'' is thought of as the only warship lost with all hands, the JCFADT report lists eight other surface warships of similar size lost during the World Wars where none survived, and another six where 95% or more aboard died.<ref>JCFADT, ''Report on the loss of HMAS Sydney'', pp. 89–90</ref>

An alternative version of this theory is that authorities were aware of ''Sydney'' being attacked at the time of or shortly after the battle but deliberately delayed organising searches for survivors.<ref name=Dennis126/> There is no evidence that anybody ashore knew of the battle until ''Trocas'' found German survivors and informed the authorities.<ref name=Dennis126/> The Sydney Research Group allege that ''Sydney'' attempted to radio Darwin to report that the cruiser was on fire and being abandoned.<ref name=Frame187.8>Frame, ''HMAS Sydney'', pp. 187–8</ref> Other individuals or groups have claimed that they heard or witnessed the receipt of messages (either voice or [[morse code|morse]]) from ''Sydney'' or saw transcripts of these messages.<ref name=Olson347.8>Olson, ''Bitter Victory'', pp. 347–8</ref> All claims state that transcripts and other evidence were later destroyed.<ref name=Frame187.8/><ref name=Olson347.8/>

''Sydney'' was not fitted with voice transmission equipment, so it could not have sent any of the reported voice signals.<ref name=Olson104.5>Olson, ''Bitter Victory'', pp. 104–5</ref><ref name= 3Cole150/> Had the cruiser tried to send morse signals, they would have been jammed by ''Kormoran''{{'}}s wireless operators.<ref name=Dennis126>Dennis, in ''Zombie Myths of Australian Military History'', p. 126</ref> Several messages were identified as having come from other sources, while associates of the claimants have shown the evidence to be suspect for the rest.<ref name=Olson347.8/><ref name=3Cole150>Cole, ''The Loss of HMAS Sydney II'', vol. 3, p. 150</ref> The 2009 inquiry concluded that no messages were sent by ''Sydney'' before, during, or after the engagement.<ref>Cole, ''The Loss of HMAS Sydney II'', vol. 3, pp. 150, 186</ref>

====''Sydney'' not at action stations{{anchor|action stations}}====
The claim that ''Sydney'' was not at [[action stations]] originates from an observation by Detmers; as ''Sydney'' approached, the cruiser's {{convert|4|in|mm|adj=on}} guns were unmanned, and sailors in aprons (which he describes as [[wikt:pantryman|pantrymen]]) were standing on deck watching the German ship.<ref name=Olson219>Olson, ''Bitter Victory'', p. 219</ref> Followers of alternative engagement theories interpret this as evidence that ''Sydney'' was not at action stations, therefore unable to react when ''Kormoran'' unmasked.<ref>Montgomery, ''Who Sank The Sydney?'', pp. 121, 132</ref>

Olson lists two groups of sailors that could have been mistaken for pantrymen but had a reason to be where Detmers saw them.<ref>Olson, ''Bitter Victory'', p. 220</ref> Ammunition handlers from the 4-inch guns, who wore protective aprons, could have been standing clear of their weapons because of the planned catapult launch of the Walrus amphibian or the direction "X" turret was facing when trained on ''Kormoran'', both of which could have injured the unprotected gunners.<ref>Olson, ''Bitter Victory'', pp. 220–3</ref> A second group would have been a [[cutter (boat)|cutter]] party preparing to launch a boat to rescue the Walrus crew if it [[ditched]], or to board ''Kormoran'', with their life jackets mistaken for aprons.<ref>Olson, ''Bitter Victory'', pp. 221, 224–6</ref> The JCFADT report suggests a third group: a [[Damage control (maritime)|damage control]] party in fire-fighting gear.<ref>JCFADT, ''Report on the loss of HMAS Sydney'', p. 39</ref>

Conversely, the Cole report stated that ''Sydney'' may not have been at action stations. Ship's logs for several Australian warships showed that it was not common practice to do so when approaching unidentified merchant vessels in home waters.<ref>Cole, ''The Loss of HMAS Sydney II'', vol. 1, pp. 292–3</ref> This, combined with Detmers' observation and the belief that ''Sydney''{{'}}s approach followed procedures for an 'innocent' instead of a 'suspicious' vessel, prompted Cole to conclude that the Australian cruiser was not at action stations.<ref>Cole, ''The Loss of HMAS Sydney II'', vol. 1, pp. 302, 307–16</ref>

===Thomas Welsby Clark===
{{Main article|Thomas Welsby Clark}}
On the afternoon of 6 February 1942, lookouts on [[Christmas Island]] spotted an object out at sea, which on closer inspection turned out to be a Carley float carrying the body of a Caucasian man wearing a blue [[boilersuit|boiler suit]] that had been sun-bleached white.<ref name=Olson328.9>Olson, ''Bitter Victory'', pp. 328–9</ref> The flesh of his right arm had been eaten away by fish, and his eyes and nose consumed by birds.<ref name=Olson329/> Shrapnel was embedded in the float's outer covering, while the proliferation of marine growth indicated that it had been adrift for some time.<ref name=Olson329>Olson, ''Bitter Victory'', p. 329</ref> As the island was under threat of Japanese invasion, after a brief examination, the body was buried in an unmarked grave near [[Flying Fish Cove]]. Evacuation began on 17 February, with Japanese forces occupying the island on 23 March.<ref name=Winter241>Winter, ''H.M.A.S. Sydney'', p. 241</ref><ref name=2Cole324.6>Cole, ''The Loss of HMAS Sydney II'', vol. 2, pp. 324–6</ref>

The island's inhabitants believed that the float and sailor were of naval origin and had come from ''Sydney''.<ref name=Olson329/> A post-war RAN investigation determined that this claim was incorrect because the raft's description did not match those manufactured for the RAN.<ref>Olson, ''Bitter Victory'', pp. 329–30</ref> Subsequent writers on the subject have disagreed: Winter states that a Carley float from ''Sydney'' would have been propelled by currents into proximity of Christmas Island around the time of its discovery, while Olson claims that the description of the float's rope and markings matched those used on British ships (from whose supplies ''Sydney'' could have drawn), the boiler suit indicated a [[naval rating]], and that the quantity of marine growth corresponded with the time such a float would have been at sea.<ref name=Winter241/><ref>Olson, ''Bitter Victory'', pp. 329–32</ref> The JCFADT inquiry concluded "on the balance of probability, that the body and the Carley float&nbsp;... were most likely from HMAS ''Sydney''", and while Frame was initially sceptical of the raft's origins, the evidence presented to that inquiry changed his mind.<ref>JCFADT, ''Report on the loss of HMAS Sydney'', p. 118</ref><ref>Olson, ''Bitter Victory'', p. 330</ref><ref>Frame, ''HMAS Sydney'', p. 203</ref>

The inquiry recommended that the grave be found, the body exhumed, and its DNA compared to relatives of ''Sydney'' personnel.<ref>Cole, ''The Loss of HMAS Sydney II'', vol. 2, pp. 331–2</ref> A 2001 search by the RAN failed to find the grave, but they were more successful during a second search in 2006.<ref name=Mearns112>Mearns, ''The Search for the Sydney'', p. 112</ref><ref>Cole, ''The Loss of HMAS Sydney II'', vol. 2, pp. 332</ref> During an autopsy, a metal fragment was found embedded in the skull, which was believed to have killed the man through brain trauma. Although seized upon by believers in the [[#No Sydney survivors|massacre of ''Sydney''{{'}}s sailors]], the fragment was found to be German shell shrapnel.<ref>Cole, ''The Loss of HMAS Sydney II'', vol. 2, pp. 336–9</ref><ref name="Dennis132">Dennis, in ''Zombie Myths of Australian Military History'', p. 132</ref> Extensive DNA comparison testing was able to identify living relatives, and genealogical and service records were used to identify the sailor.<ref>{{Cite web|date=2022-02-08|title=The case of the unknown sailor|url=https://www.abc.net.au/radio/programs/conversations/jeremy-austin-dna-hmas-sydney-sinking-remains-christmas-island/13744678|access-date=2022-02-20|website=ABC Radio|language=en-AU}}</ref>
On 19 November 2021, staff at the Australian War Memorial announced that the body had been formally identified as 21-year-old [[Thomas Welsby Clark]], [[Able seaman (rank)|Able seaman]] of the HMAS ''Sydney''.<ref>{{cite news|url=https://www.abc.net.au/news/2021-11-19/unknown-sailor-identified-as-thomas-welsby-clark/100633302|title=Identity of 'unknown sailor' revealed as 21-year-old Thomas Welsby Clark|publisher=ABC News|date=19 November 2021}}</ref><ref>{{cite news |author1=Australian Government – Department of Defence |author1-link=Department_of_Defence_(Australia) |title=Unknown HMAS Sydney II sailor named after 80 years |url=https://www.minister.defence.gov.au/minister/andrew-gee/media-releases/unknown-hmas-sydney-ii-sailor-named-after-80-years |access-date=19 November 2021 |date=19 November 2021 |language=en}}</ref><ref>{{cite web|url=https://www.navy.gov.au/biography/able-seaman-thomas-welsby-clark|title=Able Seaman Thomas Welsby Clark|publisher=Royal Australian Navy|date=19 November 2021}}</ref>

===Why Burnett approached so close===<!-- This heading is linked to from other articles -->
{{anchor|Why Burnett approached so close}}
[[File:Captain Joseph Burnett.jpg|thumb|upright|alt=A middle-aged man wearing a white uniform and cap, holding binoculars while looking out a window|Burnett on ''Sydney''{{'}}s bridge]]
By manoeuvring close to ''Kormoran'', Burnett removed the advantage of his longer-ranged primary armament and put ''Sydney'' in a position where the raider's main guns could penetrate the cruiser's armour. Because there were no Australian survivors, Burnett's decision is inexplicable; writers on the subject can only speculate on his reasoning and indicate what factors they believe influenced him.<ref>Olson, ''Bitter Victory'', p. 226</ref> Up until the 1980s, most of the material published relating to the loss of ''Sydney'' accepted the German interpretation of events (that Burnett was deceived by ''Kormoran''{{'}}s disguise and placed his ship in a tactically unsound position) and assigned Burnett various levels of blame for his role in the cruiser's demise.<ref name=Frame129.35/><ref>Olson, ''Bitter Victory'', p. 112</ref>

Gill claimed that because Burnett had taken command of ''Sydney'' after a shore posting and was assigned to relatively calm operational areas, he was incautious when approaching ''Kormoran''.<ref name="Gill456.7">Gill, ''Royal Australian Navy, 1939–1942'', pp. 456–7</ref> He also believed that Burnett was not suspicious of ''Straat Malakka''; had he been, he would have used the Walrus to identify the ship or broken wireless silence and enquired about the ship.<ref name= "Gill456.7"/><ref name=Olson183>Olson, ''Bitter Victory'', p. 183</ref>

Olson (among others) believes that Burnett was placed under conflicting orders: raiders were to be destroyed (preferably at range to avoid retaliation), but merchantmen and raider supply ships were to be captured to replace Allied freighters sunk in the [[tonnage war]].<ref name=Olson164.5>Olson, ''Bitter Victory'', pp. 164–5</ref><ref>JCFADT, ''Report on the loss of HMAS Sydney'', p. 41</ref> The suggested method of capture was to quickly manoeuvre in close and deploy a boarding party before the ship could scuttle.<ref name=Olson164.5/> Olson thinks that ''Kormoran''{{'}}s actions (turning away from the coast upon seeing an unknown vessel, delays in replying to signals, the distress call transmitted long after ''Sydney'' appeared) made Burnett suspicious, and he was trying to position ''Sydney'' so he could identify the merchantman's physical features and to facilitate capture.<ref>Olson, ''Bitter Victory'', pp. 183–7, 211–2</ref> Following the loss of ''Sydney'', [[British Admiralty|Admiralty]]'s instructions on capturing merchant ships changed to only encourage attempts if there was no risk of the vessel being a raider or accompanied by a [[U-boat]]; no such attempts were made for the rest of the war.<ref name=Olson164.5/>

In March 1941, the heavy cruiser {{HMAS|Canberra|D33|6}} had encountered a tanker supplying a possible raider, which split up and fled when ordered to stop.<ref>Frame, ''HMAS Sydney'', pp. 113–4</ref> ''Canberra'' pursued the suspected raider and fired from maximum range to avoid retaliatory fire, while her Walrus amphibian attempted to stop the tanker with bombs.<ref name=Frame114>Frame, ''HMAS Sydney'', p. 114</ref> The cruiser fired 215 shells, with most missing, while all of the Walrus' bombs were used.<ref name=Frame114/> However, both ships (the raider supply ship ''Coburg'' and the captured Norwegian tanker ''Ketty Brovig'') had commenced [[scuttling]] once ''Canberra'' started firing.<ref name=Frame114/> Post-action analysis found that if ''Canberra'' had moved closer, the same damage could have been achieved for less ammunition, and one or both ships might have been captured—factors that Burnett had commented on during his previous posting as Deputy Chief of Naval Staff and which Frame and Gill think may have influenced his actions.<ref name="Gill456.7"/><ref>Frame, ''HMAS Sydney'', pp. 114, 133</ref><ref>Frame, ''No Pleasure Cruise'', pp. 166–8</ref>

In the 2009 inquiry report, Cole determined that Burnett was following the approach and challenge procedures for an 'innocent' vessel instead of a 'suspicious' one.<ref name=2Cole387>Cole, ''The Loss of HMAS Sydney'', vol. 2, pp. 387</ref> The other case called for ''Sydney'' to stand off at {{convert|7|-|8|nmi}} and order the merchantman to stop or be fired upon.<ref name=2Cole387/> Despite the list of ships scheduled to be in the area, Cole believes that Burnett's previous experiences with inaccurate shipping lists caused him to think of ''Straat Malakka''{{'}}s unexplained presence as a clerical error.<ref>Cole, ''The Loss of HMAS Sydney'', vol. 2, pp. 389–91</ref> The actions that Olson describes as indicating suspicion are also considered by Cole, who believed that by the time these came into play, ''Sydney'' would already be at a disadvantage.<ref>Cole, ''The Loss of HMAS Sydney'', vol. 2, pp. 392–3, 397–403</ref>

==Memorials==
[[File:HMAS Sydney Memorial.jpg|thumb|right|alt=|The memorial at [[Geraldton]]]]
The main memorial for the loss of ''Sydney'' is located on Mount Scott at [[Geraldton]].<ref name=McCarthy/> Planning for the memorial commenced in late 1997, after a speech by researcher Glenys McDonald at the local [[Rotary International|Rotary]] club.<ref name= McDonald205>McDonald, ''Seeking the Sydney'', p. 205</ref> A temporary memorial (consisting of a large boulder, a flagpole, and a bronze plaque) was installed prior to 19 November 1998 and was used in a remembrance ceremony that year.<ref name=McDonald205/> During the playing of the [[Last Post]], a large flock of seagulls flew over the participants and headed out to sea in formation; this inspired the design of the permanent memorial.<ref>McDonald, ''Seeking the Sydney'', pp. 205–6</ref> The memorial included four major elements: a [[stele]] of the same size and shape of the ship's prow, a granite wall listing the ship's company, a bronze statue of a woman looking out to sea and waiting in vain for the cruiser to come home, and a dome (dubbed the "dome of souls") onto which 645 stainless steel seagulls were welded.<ref>McDonald, ''Seeking the Sydney'', p. 206</ref> The memorial (minus the stele, which was not completed in time) was dedicated on 18 November 2001, and it was used the following evening for a commemoration ceremony marking the battle's 60th anniversary.<ref>McDonald, ''Seeking the Sydney'', pp. 208–11</ref> By 2011, the stele had been completed, and a fifth element—a pool of remembrance containing a map of the region and the marked position of ''Sydney''{{'}}s wreck—had been added.<ref>Robertson, ''HMAS Sydney II Memorial completed in time for the commemorative 70th anniversary''</ref>

[[File:Naval Chapel GI Mel-Syd.JPG|thumb|left|alt=Two tall stained glass windows. The left window shows an aircraft carrier about to launch an aircraft, while the right depicts two cruisers and an aircraft carrier at sea. A memorial plaque sits between the windows.|Memorial windows recognising the three ships named HMAS ''Sydney'' (right) and the aircraft carrier {{HMAS|Melbourne|R21|6}} (left) in the [[Naval Chapel, Garden Island NSW]]]]
Other memorials commemorating the loss of ''Sydney'' include an oak tree planted at the Melbourne [[Shrine of Remembrance]] and an avenue in Carnarvon lined with 645 trees.<ref name=McCarthy/><ref name=Winter247>Winter, ''H.M.A.S. Sydney'', p. 247</ref> The service of ''Sydney'', along with the other ships [[List of ships named HMAS Sydney|of the same name]], is commemorated by a stained-glass window at the [[Naval Chapel, Garden Island NSW|Garden Island Naval Chapel]].<ref>Olson, ''Bitter Victory'', p. 369</ref> The names of those killed aboard ''Sydney'' are inscribed at the [[Australian War Memorial]], while those from ''Kormoran'' are inscribed in the [[Laboe Naval Memorial]] where a memorial stone commemorating both the ''Kormoran'' and ''Sydney'' was inaugurated on 12 November, 2010 by former Australian ambassador to Germany [[Peter Tesch]].<ref>Winter, ''H.M.A.S. Sydney'', pp. 247–8</ref><ref>{{cite web|url= https://web.archive.org/web/20240529013336/https://seapower.navy.gov.au/media-room/publications/semaphore-09-21|title=Semaphore: Commemorating the Crews of HMAS Sydney (II) and HSK Kormoran at Home and Abroad|publisher=[[Royal Australian Navy]]|access-date=28 May 2024}}</ref>


[[File:Marineehrenmal Laboe - australische Gedenktafel.jpg|thumb|Joint ''Sydney-Kormoran'' memorial stone at the [[Laboe Naval Memorial]]]]

The "HMAS Sydney Replacement Fund" was established to help finance the acquisition of a replacement ship.<ref name=ANAM60>ANAM, ''Flying Stations'', p. 60</ref> The [[Australian pound|AU£]]&nbsp;426,000 raised was used to help purchase Australia's first aircraft carrier in the late 1940s; the [[Majestic-class aircraft carrier|''Majestic''-class]] carrier was named {{HMAS|Sydney|R17|6}} upon her commissioning in December 1948.<ref name=ANAM60/> The ''Kormoran'' name was carried on by the {{Ship|German fast attack craft|Kormoran|S28|6}}, a [[Seeadler-class fast attack craft|''Seeadler''-class]] fast attack craft of the ''[[Bundesmarine]]'' (West German Navy) commissioned in 1959.<ref name=Winter243>Winter, ''H.M.A.S. Sydney'', p. 243</ref> East Germany also operated a ''Kormoran,'' a small corvette borrowed from the Soviet Navy from 1970 to 1974.<ref name=Winter243/>
{{Clear}}

==Footnotes==
{{notelist}}

==Citations==
{{reflist|30em}}

==References==
;Books
{{refbegin}}
* {{cite book|last=Cassells|first=Vic|title=The Capital Ships: their battles and their badges|year= 2000|publisher=Simon & Schuster|location=East Roseville, NSW|isbn=0-7318-0941-6|oclc=48761594}}
* {{cite book|last=Dennis|first=Peter|editor=Stockings, Craig|editor-link=Craig Stockings|title=Zombie Myths of Australian Military History|url=https://archive.org/details/zombiemythsaustr00stoc|url-access=limited|year=2010|publisher=University of New South Wales Press|location=Sydney, NSW|isbn= 978-1-74223-079-5|pages=[https://archive.org/details/zombiemythsaustr00stoc/page/n126 116]–39|chapter=Out in the midday sun: the loss of HMAS Sydney II}}
* {{cite book|last=Frame|first=Tom|author-link=Tom Frame (bishop)|title=HMAS Sydney: Loss and Controversy|publisher=Hodder & Stoughton|location=Rydalmere, NSW|year=1993|isbn=0-340-58468-8|oclc= 32234178}}
* {{cite book |last=Frame |first=Tom |author-link=Tom Frame (bishop) |title=No Pleasure Cruise: the story of the Royal Australian Navy |year=2004 |publisher=Allen & Unwin |location=Crows Nest, NSW |isbn=1741142334 |oclc=55980812}}
* {{cite book|last=Gill|first=George Hermon|title=Royal Australian Navy, 1939–1942|series=[[Australia in the War of 1939–1945]]. Series 2 – Navy|volume=I |year=1957|publisher=Australian War Memorial|location=Canberra|url=https://www.awm.gov.au/collection/RCDIG1070207/|oclc=848228}}
* {{cite book|last=Goldrick|first=James|editor=Stevens, David|title=The Royal Australian Navy|series =The Australian Centenary History of Defence |volume=III|year=2001|publisher=Oxford University Press| location=South Melbourne, VIC|isbn=0-19-555542-2|oclc=50418095|chapter=World War II: The war against Germany and Italy|pages=103–126)}}
* {{cite book|last=Grove|first=Eric|editor=Stevens, David|title=The Royal Australian Navy in World War II|year=2005|publisher=Allen & Unwin|location=Crows Nest, NSW|isbn=1-74114-184-2|oclc=156678255| chapter=The Royal Australian Navy in the Mediterranean|pages=37–50}}
* {{cite book|last=Hore|first=Peter|editor=Stevens, David|title=The Royal Australian Navy in World War II|year=2005|publisher=Allen & Unwin|location=Crows Nest, NSW|isbn=1-74114-184-2|oclc=156678255| chapter=HMAS Sydney in World War II|pages=85–96}}
* {{cite book|last=Jeans|first=Peter D.|title=Seafaring lore & legend: a miscellany of maritime myth, superstition, fable, and fact|url=https://books.google.com/books?id=2TRxLhG2GiwC|publisher= McGraw-Hill|location=New York; London|year=2004|isbn=0-07-143543-3|oclc=56456095}}
* {{cite book|last=Milligan|first=Christopher|author2=Foley, John|title=Australian Hospital Ship Centaur: the myth of immunity|year=2003|publisher=Nairana Publications|location=Hendra, QLD|isbn= 0-646-13715-8|oclc=31291428}}
* McCarthy, M. (ed.) 2010 HMAS Sydney (II). Western Australian Museum Press, Welshpool.
* {{cite book|last=McDonald|first=Glenys|title=Seeking the Sydney: a quest for truth|publisher= University of Western Australia Press|location=Crawley, WA|year=2005|isbn=1-920694-54-4|oclc=62557643}}
* {{cite book|last=McKernan|first=Michael|title=The Strength of a Nation: six years of Australians fighting for the nation and defending the homefront in WWII|publisher=Allen & Unwin|location=Crows Nest, NSW|year=2006|isbn=978-1-74114-714-8|oclc=82147800}}
* {{cite book|last=Mearns|first=David|author-link=David Mearns|title=The Search for the Sydney| publisher=HarperCollins Publishers|location=Pymble, NSW|year=2009|isbn=978-0-7322-8889-1|oclc= 301679923}}
* {{cite book|last=Montgomery|first=Michael|title=Who Sank The Sydney?|publisher=Cassell Australia| location=North Ryde, NSW|year=1981|isbn=0-7269-5476-4|oclc=7925808}}
* {{cite book|last=Olson|first=Wesley|title=Bitter Victory: The Death of HMAS Sydney|publisher= University of Western Australia Press|location=Nedlands, WA|year=2000|isbn=1-876268-49-2|oclc= 45722719}}
* {{cite Q |Q131423643 |last=Winter |first=Barbara |mode=cs1}}
{{refend}}

;Reports
{{refbegin}}
* {{cite Q |Q131411474 |mode=cs1 |last=Cole |first=Terence RH |author-link=Terence Cole (jurist) |access-date=2024-12-09 }}
* {{cite book|author=Joint Standing Committee on Foreign Affairs, Defence and Trade (JCFADT)|title= Report on the Loss of HMAS Sydney|publisher=The Parliament of the Commonwealth of Australia| location=Canberra|date=22 March 1999|isbn=0-642-25872-4|oclc=42768622|url=http://www.aph.gov.au/house/committee/jfadt/sydney/Reportinx.htm|access-date=9 November 2009| archive-url= https://web.archive.org/web/20091003010558/http://www.aph.gov.au/house/committee/jfadt/Sydney/Reportinx.htm| archive-date= 3 October 2009 | url-status= live}}
* {{cite report |type=Report |title=A précis of search-related events leading up to the commencement of the HMAS Sydney Search |last=McCarthy |first=Michael |year=2008 |docket=230 |department=Department of Maritime Archaeology |institution=Western Australian Museum |url=https://museum.wa.gov.au/sites/default/files/No.%20230%20Sydney%20search%20chronology.pdf |access-date=2024-12-09 }}
* {{cite book|last=McCarthy|first=Michael|title=An insight into the Genesis and Evolution of the HMAS Sydney Controversy|publisher=Department of Maritime Archaeology, Western Australian Museum|year=2009|series=Report—Department of Maritime Archaeology|volume=243|url=http://www.museum.wa.gov.au/sites/default/files/No.%20243%20HMAS%20Sydney.pdf|access-date=19 November 2011}}
{{refend}}

;News articles and websites
{{refbegin}}
* {{cite news |url=http://www.australiangeographic.com.au/journal/hmas-sydney-wreck-makes-heritage-list.htm/ |title=HMAS Sydney makes heritage list |work=Australian Geographic |date=15 March 2011 |access-date=23 March 2011 |author=Australian Associated Press |url-status=dead |archive-url=https://web.archive.org/web/20110318070046/http://www.australiangeographic.com.au/journal/hmas-sydney-wreck-makes-heritage-list.htm |archive-date=18 March 2011 }}
* {{cite news|url=http://uk.reuters.com/article/worldNews/idUKSYD28248720080331|archive-url=https://archive.today/20130201042552/http://uk.reuters.com/article/worldNews/idUKSYD28248720080331|url-status=dead|archive-date=1 February 2013|title=Australian judge to examine wartime ship loss|last=Gurbel|first=James|work=Reuters|date=31 March 2008|access-date=17 November 2009}}
* {{cite news|title=WA book revives war mystery|last=Harvey|first=Clare|date=20 March 2005|work=The Sunday Times}}
* {{cite news|url=http://www.marinetechnologynews.com/news/shipwrecks-photographed-australia-515907 |title=WWII Shipwrecks Photographed off Australia |last=Haun |first=Eric |date=11 June 2015 |work=Marine Technology News |access-date=17 June 2015}}
* {{cite news|title=Did a sub really fire the fatal torpedo?|last=Jenkins|first=David|date=17 September 1992|work=The Sydney Morning Herald|page=15}}
* {{cite news|title=Leaping to conclusions in tale of Sydney's sinking|last=Lewis|first=Thomas|date= 25 February 2006|newspaper=Canberra Times|page=A. 14}}
* {{cite web|url=http://www.museum.wa.gov.au/collections/maritime/march/shipwrecks/sydney/Sydney.html |title=The HMAS Sydney/HSK Kormoran engagement: an analysis of events leading up the 60th anniversary celebrations in November 2001 |last=McCarthy |first=Michael |date=June 2002 |publisher=Western Australian Maritime Museum |access-date=31 October 2009 |archive-url=https://web.archive.org/web/20091003082707/http://www.museum.wa.gov.au/collections/maritime/march/shipwrecks/sydney/Sydney.html |archive-date=3 October 2009 |url-status=dead }}
* {{cite news|url=http://www.abc.net.au/news/2015-04-27/hmas-sydney-wreck-search-departs/6423976 |title=HMAS Sydney wreck to be recorded in safeguard mission |last=Mundy |first=Garrett |date=27 April 2015 |work=ABC News |publisher=Australian Broadcasting Corporation |access-date=3 May 2015}}
* {{cite news|title=The truth of their deadly battle|last=Nicholson|first=Brendan|date=13 August 2009|work=The Sydney Morning Herald}}
* {{cite news|url=http://www.perthnow.com.au/hmas-sydney-ii-memorial-completejust-in-time-for-the-commemorative-70th-anniversary-of-world-war-ii-naval-battle/story-fn6cmyjj-1226190144514|title=HMAS Sydney II Memorial completed in time for the commemorative 70th anniversary|last=Robertson|first=Katie|date=13 November 2011|work=Perth Now|access-date=13 November 2011}}
* {{cite news|title=Battle behind Sydney's finding revealed|date=1 August 2009|work=The West Australian}}
{{refend}}

==Further reading==
* {{cite book|last=Hore|first=Peter|title=Sydney, Cipher and Search|year=2009|publisher=Seafarer Books|location=Woodbridge, Suffolk|isbn=978-1-906266-08-0|url-access=registration|url=https://archive.org/details/sydneyciphersear0000hore}}
* {{cite Q |Q131399698 |mode=cs1}}

== External links ==
* [http://www.findingsydney.com/ Finding Sydney Foundation] (with slide shows of both wrecks)
* [https://web.archive.org/web/20180803215158/http://hmassydney.com.au/ HMAS Sydney II Memorial Geraldton]

{{Sydney-Kormoran}}
{{Western Australia during World War II}}

[[Category:1941 in Australia]]
[[Category:Australia–Germany military relations]]
[[Category:Conflicts in 1941]]
[[Category:Maritime incidents in November 1941]]
[[Category:Military attacks against Australia]]
[[Category:Naval battles of World War II involving Australia]]
[[Category:Naval battles of World War II involving Germany]]
[[Category:Naval history of World War II]]
[[Category:November 1941 in Oceania]]
[[Category:Western Australia during World War II]]