Allied losses
HMS Otus (Odin-class submarine), sunk by the IJN Shimushu, Shinonome and Isonami in the South China Sea (OTL survived the war, decom. 1945)
MN Le Conquérant (Redoutable-class submarine), sunk by the IJN Shirayuki off Endau (OTL sunk in November 1942 off Morocco)
HNLMS K-XVIII (K-XIV-class submarine), beached following air attack by Japanese aircraft in Singapore harbor (OTL scuttled, raised, sunk in 1945)
USS Peary (Clemson-class destroyer), sunk by Japanese bombers in Surabaya (OTL sunk at Darwin in February 1942)
MN Tornade (Bourrasque-class destroyer), sunk by Japanese bombers in Surabaya (OTL beached at Oran in November 1942)
MN Le Centaure (Redoutable-class submarine), beached following air attack by Japanese aircraft in Surabaya (OTL survived the war, decom. 1952)
HNLMS K-VII (K-V-class submarine), sunk by Japanese bombers in Surabaya (OTL destroyed in February 1942)
HNLMS K-XIII (K-XI-class submarine), sunk by Japanese bombers in Surabaya (OTL scuttled in March 1942)
USS S-36 (S-class submarine), sunk by Japanese bombers in Surabaya (OTL scuttled later in January 1942)
USS Whipple (Clemson-class destroyer), sunk by Japanese bombers at Kupang (OTL survived the war, decom. 1945)
USS Hopewell (Wickes-class destroyer), sunk by Japanese bombers at Kupang (OTL transferred to the UK then Norway, sunk in August 1941)
USS John D. Edwards (Clemson-class destroyer), sunk by Japanese bombers at Kupang (OTL survived the war, decom. 1945)
USS Pope (Clemson-class destroyer), sunk by Japanese destroyers during the Battle of Balikpapan Bay (OTL sunk in March 1942)
USS Concord (Omaha-class light cruiser), sunk by the IJN Jintsu during the Battle of Balikpapan Bay (OTL survived the war, decom. 1945)
USS Paul-Jones (Clemson-class destroyer), sunk by the IJN Jintsu and Japanese destroyers during the Battle of Balikpapan Bay (OTL survived the war, decom. 1945)
USS Bulmer (Clemson-class destroyer), sunk by Japanese destroyers during the Battle of Balikpapan Bay (OTL survived the war, decom. 1946)
USS Barker (Clemson-class destroyer), sunk by the IJN Jintsu and Japanese destroyers during the Battle of Balikpapan Bay (OTL survived the war, decom. 1945)
USS Pillsbury (Clemson-class destroyer), sunk by Japanese destroyers during the Battle of Balikpapan Bay (OTL sunk in the Second Battle of the Java Sea in March 1942)
USS John D. Ford (Clemson-class destroyer), scuttled following damaged recieved from Japanese destroyers during the Battle of Balikpapan Bay (OTL survived the war, decom. 1945)
USS Pickerel (Porpoise-class submarine), sunk by Japanese submarine chasers and a minesweeper off Balikpapan Bay (OTL sunk in April 1943)
HMS Avon Vale (Hunt II-class destroyer escort), beached following damage recieved from Val and Kate aircraft at the entrance of Perak River mouth (OTL survived the war, decom. 1958)
HMS Icarus (I-class destroyer), sunk while in tow after taking damage from Ju-88s in the Strait of Sicily (OTL survived the war, decom. 1946)
Axis losses
MM Castore (Spica-class torpedo boat), sunk by French DB-73M in the Battle of Cape Kimi (OTL sunk in June 1943)
IJN Asagiri (Fubuki-class destroyer), sunk by the MN Le Centaure off Endau (OTL sunk in August 1942)
IJN Sendai (Sendai-class light cruiser), beached following air attack by RAF Beauforts at Endau (OTL sunk in the Battle of Empress Augusta Bay in November 1943)
MM Giuseppe-Cesare Abba (Rosolino Pilo-class torpedo boat), sunk by a mine laid by the MN Turquoise off Corfu (OTL survived the war, decom. 1958)
IJN I-15 (B1-class submarine), sunk by the MN Argo in the South China Sea (OTL sunk in November 1942)
KGM U-132 (Type VIIC-class submarine), sunk by Franco-British escorts between Benghazi and Crete (OTL sunk in November 1942)
KGM U-331 (Type VIIC-class submarine), sunk by a French PBY Catalina between Benghazi and Crete (OTL sunk in November 1942)
KGM U-133 (Type VIIC-class submarine), sunk by the MN La Boudeuse and MN La Gracieuse off Benghazi (OTL sunk in March 1942)
IJN Natsushio (Kagero-class destroyer), beached following damage recieved from USS Pillsbury during the Battle of Balikpapan Bay at the entrance of said bay (OTL sunk in February 1942)
KGM Z-8 Bruno Heinemann (Type 1934A-class destroyer), mined off Ostend as OTL
IJN I-73 (Kaidai-class submarine), sunk by the USS Gudgeon west of Midway as OTL
KGM U-374 (Type VIIC-class submarine), sunk by Swordfish from HMS Furious in the Central Mediterranean (OTL sunk a few days earlier)