Pearl Harbor Remembrance Day is observed on December 7 each year to honor the lives lost during the surprise attack on the U.S. naval base at Pearl Harbor, Hawaii, in 1941. This event led the United States to enter World War II. On this day, ceremonies and events are held to remember the 2,403 service members and civilians who died in the attack. Many people participate in moments of silence and reflect on the significance of the day, ensuring that the sacrifices made are not forgotten.