Why were Marines in Beirut in the early 1980s?

 Rescue and clean-up crews search for casualties following the barracks bombing in Beirut on October 23, 1983.

Rescue and clean-up crews search for casualties following the barracks bombing in Beirut on October 23, 1983.

Answer: Peacekeeping Mission

The Marines in Beirut were part of a multinational peacekeeping force that was trying to broker a truce between warring Christian and Muslim Lebanese factions. In 1981, American troops had supervised the withdrawal of the Palestine Liberation Organization (PLO) from Beirut and then had withdrawn themselves. They returned the next year, after Israel’s Lebanese allies slaughtered nearly 1,000 unarmed Palestinian civilian refugees. Eighteen hundred Marine peacekeepers moved into an old Israeli Army barracks near the airport—a fortress with two-foot–thick walls that could, it seemed, withstand anything. Even after a van bomb killed 46 people at the U.S. Embassy in April, the American troops maintained their non-martial stance: their perimeter fence remained relatively unfortified, for instance and their sentries’ weapons were unloaded.

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