USCIS Civics · Question 106 of 128
Why did the United States enter World War II?
(Bombing of) Pearl Harbor
Also accepted: Japanese attacked Pearl Harbor · To support the Allied Powers (England, France, and Russia) · To oppose the Axis Powers (Germany, Italy, and Japan)
In plain English
The United States entered World War II because the Japanese attacked Pearl Harbor. On December 7, 1941, Japan bombed the U.S. naval base at Pearl Harbor, Hawaii. The next day, the United States declared war. America fought to support the Allied Powers and to oppose the Axis Powers — Germany, Italy, and Japan. The United States entered World War II because of the bombing of Pearl Harbor.