Early on a Sunday morning, October 23, 1983, two truck bombs struck buildings in Beirut, Lebanon, housing American and French service members of the Multinational Force in Lebanon (MNF), a military peacekeeping operation during the Lebanese Civil War. The attack killed 307 people: 241 U.S. and 58 French military personnel, six civilians, and two attackers.
The first suicide bomber detonated a truck bomb at the building serving as a barracks for the 1st Battalion 8th Marines (Battalion Landing Team – BLT 1/8) of the 2nd Marine Division, killing 220 marines, 18 sailors and three soldiers, making this incident the deadliest single-day death toll for the United States Marine Corps since the Battle of Iwo Jima in World War II and the deadliest single-day death toll for the United States Armed Forces since the first day of the Tet Offensive in the Vietnam War.[1][better source needed] Another 128 Americans were wounded in the blast; 13 later died of their injuries, and they are counted among the number who died. An elderly Lebanese man, a custodian/vendor who was known to work and sleep in his concession stand next to the building, was also killed in the first blast. The explosives used were later estimated to be equivalent to as much as 9,500 kg (21,000 pounds) of TNT