Britain and the United States declare war on Japan.FDR announcing Declaration of War against Japan. Japan invades Malaya.

Britain declares war on Finland, Hungary, and Rumania. Japanese bomb the United States fleet at Pearl Harbor.

Churchill and FDR form Atlantic Charter, establishing the war aims of both nations.

German infantry during the invasion of the Soviet Union in 1941.

Germans occupy Belgrade, Yugoslavia. Russo-Japanese neutrality pact signed.

During a Fireside Chat, FDR declares that the U.S. should become an arsenal of democracy against the Axis threat.

In the United States, the Office of Production Management is set up to coordinate defense manufacturing and supply material aid

The deportations of German Gypsies to concentration camps in the east begins.

FDR elected to an unprecedented third term as president