When did america join world war two?
In 1941, although the war began with Nazi Germany's attack on Poland in September 1939, the United States did not enter the war until after the Japanese bombed the American fleet in Pearl Harbor, Hawaii, on December 7, 1941
The United States declared war on Japan on December 8, 1941, following Japan's surprise attack on Pearl Harbor on December 7. Following the U.S. declaration, Japan's allies, Germany and Italy, declared war on the United States, bringing the United States fully into World War II.
Join Alexa Answers
Help make Alexa smarter and share your knowledge with the worldLEARN MORE