Today in World War II History—September 4, 1941
Saturday, September 4, 2021 by Sarah Sundin
80 Years Ago—Sept. 4, 1941: Off Iceland, British bomber signals destroyer USS Greer and bombs U-652; Greer and U-652 exchange torpedo and depth charge attacks, no damage; first US attack on a U-boat, first attack by a U-boat on a US warship.
[…] In radio address, President Roosevelt says US Navy will “shoot on sight” at German or Italian ships in US waters or any attacking US ships or ships under US protection (due to USS Greer incident on 9/4/41). […]