Military history of the United States during World War II Military history of the United States during World War II The military history of the United States in World War II covers the war against Germany, Italy, and Japan, starting with the 7 December 1941 attack on Pearl Harbor. During the first two years of World War II, the United States had maintained formal neutrality as made official in the Quarantine Speech delivered by U.S. President Franklin D. Roosevelt in 1937, while supplying Britain, the Soviet Union, and China with war materiel through the Lend-Lease Act which was signed into law on 11 March 1941, as well as deploying the
German military administration in occupied France during World War II Vichy France. While the Vichy government was nominally in charge of all of France, the military administration in the occupied zone was a ' Nazi dictatorship. Its rule was extended to the free zone when it was invaded by Germany and Italy during ' on 11 November 1942 in response to Operation Torch, the Allied landings in French North Africa on 8 November 1942. The Vichy government remained in existence, even though its authority was now severely curtailed. The military administration in France ended with the Liberation of France after the Normandy and Provence landings. It formally existed from May