National Pearl Harbor Remembrance Day, which is observed annually in the United States on December 7, is to remember and honor the 2,403 victims who were killed in the Japanese surprise attack on Pearl Harbor on December 7, 1941.
On August 23, 1994, United States Congress, by Pub.L. 103–308, designated December 7 of each year as National Pearl Harbor Remembrance Day.
National Pearl Harbor Remembrance Day is also referred to as Pearl Harbor Remembrance Day or Pearl Harbor Day. It is a tradition to fly the Flag of the United States at half-staff until sunset in honor of dead patriots.
On Sunday morning, December 7, 1941, the Imperial Japanese Navy Air Service attacked Naval Station Pearl Harbor in Honolulu, Hawaii, without warning and without a declaration of war, killing 2,403 American non-combatants, and injuring 1,178 others. The attack sank two U.S. Navy battleships and damaged five others. It also damaged three cruisers, three destroyers, and one minelayer. Aircraft losses were 188 destroyed and 159 damaged.