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• The Soviet minesweeper T.118 (formerly the USS Armada) was sunk by the German submarine U-365 in the Kara Sea. ww2dbase [AC]
• USS Pompon attacked a Japanese convoy off Sakhalin island during the night, damaging a tanker and sinking transport Mikage Maru No. 20; she expended 14 torpedoes and observed 4 hits. During the attack, one of her own torpedoes circled back and nearly struck her. ww2dbase [Pompon | CPC]
• USS Puffer attacked an escorted Japanese convoy of ten freighters and tankers off the Philippine Islands, sinking tanker Teikon Maru and a freighter, and damaging another tanker; she expended 6 torpedoes and observed 5 hits. ww2dbase [Puffer | CPC]
• German submarine U-365 sank Russian freighter Marina Raskova and Soviet trawler T-114 of Soviet convoy BD-5 in western Kara Sea off northern Russia; a total of 362 were killed and 256 survived. ww2dbase [Arctic Convoys | CPC]

• USS Whale completed refitting at Pearl Harbor Navy Yard, US Territory of Hawaii. ww2dbase [Pearl Harbor Navy Base and Ford Island Naval Air Station | Whale | Honolulu, Oahu | CPC]

• Irako collided with Teia Maru off Ryukyu Islands, Japan, suffering superficial damage. ww2dbase [Irako | CPC]
• The keel of landing ship No. 115 was laid down by Osaka Zosen. ww2dbase [No. 101/103-class | CPC]

• The first transport of civilians arrested in Warsaw, Poland after the start of Warsaw Uprising reached Auschwitz II-Birkenau concentration camp via Pruszków transit camp. 1,984 males and over 3,800 females were in this transport. ww2dbase [Discovery of Concentration Camps and the Holocaust | Auschwitz Concentration Camp | Oswiecim | CPC]
• German Luftwaffe wing KG 55 flew its final eastern front bombing mission as its He 111 bombers attacked bridges on the Vistula River near Warsaw, Poland. The wing would later be converted into a fighter unit under the new designation of KG(J) 55. ww2dbase [Warsaw | CPC]
• After sundown, 5 aircraft of No. 1586 (Polish Special Duties) Flight RAF and 6 aircraft of No. 148 (Special Duties) Squadron dropped supplies for the resistance fighters in Warsaw, Poland. There were Allied no losses. ww2dbase [Warsaw Uprising | Warsaw | CPC]

• Lieutenant Joseph Kennedy, Jr., the older brother of future US President John F. Kennedy, was killed in a flying accident involving an Operation Aphrodite aircraft over East Suffolk, England, United Kingdom. His flight engineer, Lieutenant Wilford John Willy, was also killed. ww2dbase [England | AC, HM]
• No. 402 Squadron RCAF, flying Spitfire XIV fighters, began anti-V-1 flying bomb operations in Britain. The squadron was based at RAF Hawkinge in Kent, England, United Kingdom. ww2dbase [V-Weapons Campaign | Vergeltungswaffe 1 | Hawkinge, England | HM]
• Winston Churchill sent another message to Joseph Stalin, relaying Polish request for machine guns and ammunition for the resistance fighters in Warsaw, Poland. ww2dbase [Warsaw Uprising | Joseph Stalin | Winston Churchill | London, England | CPC]

• Franklin Roosevelt aboard USS Cummings addressed a crowd of 8,000 to 10,000 people surrounding Drydock 2 at the Puget Sound Naval Shipyard, Washington. He spoke for over 35 minutes and his remarks were rebroadcast over nationwide radio. ww2dbase [Puget Sound Navy Yard | Franklin Roosevelt | Cummings | Bremerton, Washington | DS]

12 Aug 1944 Interactive Map