At the edge of Columbus Park in Boston’s North End is a unique memorial to a nearly forgotten group of servicemen. The memorial was built in 1992 to honor nine U.S. Marines from Massachusetts who died in the Beirut bombing on October 23, 1983, when two suicide bombers using truck bombs struck targets in Beirut, Lebanon. The buildings housed American and French peacekeepers working during the Lebanese Civil War. In total, the attack killed 241 U.S. citizens, 58 French military personnel, the two drivers, and six other civilians. A total of 307 people lost…