Allied Warships

USS YMS-421 (YMS-421)

Minesweeper of the YMS class

NavyThe US Navy
Built byHenry C. Grebe Co. (Chicago, Illinois, U.S.A.) 
Ordered21 Jul 1943 
Laid down20 Sep 1943 
Launched15 Apr 1944 
Commissioned3 Mar 1945 
Lost15 Sep 1945 

Foundered off Okinawa during a typhoon


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