… The United States Declares War on Japan in 1941. This historic event occurred at 12:30 p.m.

President Franklin D. Roosevelt took stage in front of a joint session of Congress and delivered his famous “Day of Infamy Speech” to the world. In his speech, FDR asked that Congress declare war on Japan and officially bring the United States into World War II.

Just the day before on Dec. 7, the Japanese had launched a surprise attack on the United States Naval Base at Pearl Harbor which killed 2,403 people.

At 4:00 p.m. President Roosevelt signed the declaration of war after Congress unanimously voted in support of war.

The only person in Congress who voted against war was Montana Congresswoman Jeanette Rankin who was the first woman to hold federal office in the United States.

The United States remained at war with Japan until Sept. 2, 1945, when Japan officially surrendered on the USS Missouri.