What event is remembered on December 7?

The event remembered on December 7 is the Japanese attack on Pearl Harbor, which occurred in 1941. This surprise military strike by the Imperial Japanese Navy against the United States naval base at Pearl Harbor, Hawaii, resulted in significant loss of life and was pivotal in galvanizing U.S. public opinion, leading to America’s entry into World War II. The attack not only damaged numerous ships and aircraft but also resulted in the loss of thousands of American lives. As a significant moment in history, it is often cited as a catalyst for the Allied nations' resolve to participate actively in the conflict against the Axis powers. The date has since been referred to as "a date which will live in infamy," as articulated by President Franklin D. Roosevelt in his famous speech to Congress the day after the attack.