Finnish troops recapture the frontier station at Beloostrov on the Gulf of Finland, 20 miles from Leningrad which is now almost entirely encircled.
190 miles Southwest of Iceland, U-652 is locates by a British bomber which drops 4 depth charges and then signals US destroyer USS Greer to pursue. Over the next 2 hours, U-652 fires 2 torpedoes at USS Greer which responds by dropping 19 depth charges. Although there is no damage, this is the first German attack on a US naval vessel. President Roosevelt will use the incident to convince Americans to go to war.
German cruiser Admiral Scheer is moved from the Baltic Sea to Oslo, Norway.