May 29, 1944
USS Block Island (CVE-21) was torpedoed and sunk by German submarine U-549. During this attack, USS Barr (DE 576) was also damaged. Block Island was the only US Navy aircraft carrier lost in the Atlantic during the Second World War. U-549 was later sunk that night by USS Eugene E. Elmore (DE-686) and USS Ahrens (DE 575).
Theater: Atlantic Theater
Source: Naval History & Heritage Command