What was the role of the United States in World War II?

What was the role of the United States in World War II?

The United States played a significant role in World War II. Initially, the U.S. remained neutral but provided military aid to countries fighting against Axis powers. However, after the Japanese attack on Pearl Harbor in 1941, the U.S. entered the war on the side of the Allies. The U.S. contributed to the war effort by mobilizing its industrial and economic resources, producing vast amounts of war materials, and providing crucial military support. American forces fought in major battles across the globe, including in the Pacific against Japan and in Europe against Germany. The U.S. also played a key role in the Allied victory by participating in major military campaigns, such as the D-Day invasion of Normandy. Additionally, the U.S. was instrumental in the development and deployment of atomic bombs, which ultimately led to Japan's surrender and the end of the war.