Britain and France say they will not honor 200-mile Pan-American neutrality zone and will attack German ships there.
Animals in Berlin Zoo placed on war rations—less meat, no bananas or peanuts.
Before Congress, Charles Lindbergh suggests the US negotiate a neutrality pact with Hitler.
HMS Illustrious, heavily damaged, leaves Malta for repairs in Alexandria.
Japanese land at crucial British naval and air base of Rabaul, New Britain and take it.
Japanese land at Kavieng, New Ireland and Kieta, Bougainville, and secure both.
Lt. Gen. Joseph Stilwell placed in command of US Army forces in China-Burma-India Theater.
Australia sends an urgent request for assistance from the Allies after a series of conquests in the Southwest Pacific brings the Japanese within a thousand miles of Australian territory.
British take Tripoli, Libya. US takes last Japanese landing beach on Guadalcanal, cutting their supply route.
Japanese continue their fight in western Guadalcanal; they now seem to have given up completely on the New Guinea campaign.
The first Japanese attack on the U.S. mainland as a submarine shells an oil refinery near Santa Barbara, California.
Australians secure Shaggy Ridge in Finisterre Mountains, New Guinea, securing Huon Peninsula.
Off the Anzio landing beaches, the Luftwaffe sinks British destroyer HMS Janus, 159 killed.
U.S. Aircraft Carrier-based planes attack the Mariana Islands.
US Ninth Army retakes St. Vith in Belgium from Germans.
Nazis execute Count Helmuth von Moltke, leader of the German Kreisau Circle resistance group.