2025 civics test · Question 106 of 128 · Recent American History and Other Important Historical Information
Why did the United States enter World War II?
In Chinese 美国为什么参加第二次世界大战？
Official answers
- (Bombing of) Pearl Harbor珍珠港（遭轰炸）
- Japanese attacked Pearl Harbor日本袭击了珍珠港
- To support the Allied Powers (England, France, and Russia)为了支持同盟国（英国、法国和俄国）
- To oppose the Axis Powers (Germany, Italy, and Japan)为了对抗轴心国（德国、意大利和日本）
Any one of these answers is accepted unless the question asks for more than one.
Why this is the answer
On December 7, 1941, Japan made a surprise attack on the U.S. naval base at Pearl Harbor in Hawaii. The next day the United States declared war on Japan, and soon Germany and Italy declared war on the United States. The U.S. then fought alongside the Allied Powers (England, France, and Russia) against the Axis Powers (Germany, Italy, and Japan). Any of the listed answers is correct.