History of Oceania

Which event brought the United states directly into World War 2?

The event that brought the United States directly into World War II was the attack on Pearl Harbor. On December 7, 1941, Imperial Japanese forces launched a surprise attack on the United States Pacific Fleet naval base at Pearl Harbor in Hawaii. The attack resulted in the deaths of over 2,400 Americans and damage to or destruction of numerous ships and aircraft. The United States formally declared war on Japan the next day, initiating the country's direct involvement in World War II.