1. Pearl Harbor Attack (December 7, 1941)
On December 7, 1941, Japanese forces launched a surprise attack on the U.S. naval base at Pearl Harbor, Hawaii, resulting in over 2,400 American casualties and leading directly to the United States’ entry into World War II. This assault unified the nation but shattered the prevailing sense of safety at home. For more detailed information, visit the History Channel’s article on the Pearl Harbor attack.
