U.S. Navy Action and Operational Reports from World War II, Pacific Theater national archives

More than 110,000 Japanese-Americans (64% of whom were American-born citizens) were required to abandon their homes and jobs and to live in 10 relocation camps.

Although there were no reliable reports that Japanese-Americans on the United States West Coast presented a subversive threat, on Mathe military declared California, Oregon and Washington State strategic areas from which Americans of Japanese decent were to be excluded. In the aftermath of the Japanese attack on Pearl Harbor, President Roosevelt issued Executive Order 9066 empowering military authorities to relocate residents of 'military areas' to prevent sabotage and espionage. Later that same day, the United States formally declared that a state of war existed with Germany and Italy. Roosevelt called the attack 'a date which will live in infamy.' Later that day, the United States formally declared that a state of war existed between the United States and the Japanese Empire.Īs a result of the Tripartite Pact between Germany, Italy, and Japan (commonly known as the 'Axis '), Germany and Italy declared war on the United States on December 11, 1941. Before a Joint Session of Congress on December 8, 1941, President Franklin D. On DecemJapanese forces attacked Pearl Harbor, Hawaii, inflicting heavy casualties and severe damage to the United States naval forces anchored there. When did the United States enter World War II?

When the ultimatum deadlines expired, Great Britain and France declared war on Germany on September 2, 1939. In support of their mutual defense treaty obligations with Poland, France and Great Britain issued ultimatums to Hitler for the immediate withdrawal of German forces from Poland. World War II formally began on Septemwhen Germany invaded Poland without a formal declaration of war.

U.S. Navy Action and Operational Reports from World War II, Pacific Theater national archives