Action Off Attu

SAT 20 FEB 1943
Pacific
Motor minesweeper YMS-133 founders and sinks, Coos Bay, Oregon.

Submarine Albacore (SS-218) torpedoes and sinks Japanese destroyer Oshio about 140 miles north-northwest of Manus, Admiralty Islands, 00°50'S, 146°06'E. Albacore escapes damage in the resultant depth-charging by an accompanying enemy warship.

Submarine Halibut (SS-232) torpedoes and sinks Japanese transport Shinkoku Maru about 450 miles north of Ponape, Carolines, 15°09'N, 159°30'E.

Japanese auxiliary patrol vessel Yoshida Maru is damaged by mine (probably laid by submarine Sunfish (SS-281) between 14-17 December 1942), 34°28'N, 137°20'E.

Japanese army cargo ship Aragane Maru sinks as the result of damage inflicted by gunfire from heavy cruiser Indianapolis (CA 35) and destroyers Coghlan (DD-606) and Gillespie (DD-609) off Attu, 53°05'N, 171°22'E.

Atlantic
German submarines sight New York-bound convoy ON 166, which is escorted by Coast Guard cutters Spencer (WPG-36) and Campbell (WPG-32), one British and four Canadian corvettes. During the night of 20-21 February, Coast Guard cutter Spencer (WPG-36) depth charges U-604.

USAAF B-24 locates German prize tanker Hohenfriedberg 500 nautical miles southwest of Cape Finisterre; consequently, British heavy cruiser HMS Sussex intercepts and sinks the Axis vessel.

Indian Ocean
Hospital ship Atlantis rescues the last 10 survivors of U.S. freighter Deer Lodge, torpedoed by German submarine U-607 off Attuabout 60 miles east of Port Elizabeth, South Africa on 16 February.