1982 Lebanon War
The 1982 Lebanon War, called by Israel the Operation Peace of the Galilee, and later colloquially also known in Israel as the First Lebanon War, began on 6 June 1982, when the Israel Defense Forces invaded southern Lebanon.
The Government of Israel decided to launch the military operation after the assassination attempt against Israel's ambassador to the United Kingdom, Shlomo Argov, by the Abu Nidal Organization, a mercenary organization opposed to the PLO.
After attacking the PLO, as well as Syrian, leftist and Muslim Lebanese forces, Israel occupied southern Lebanon and eventually surrounded the PLO and elements of the Syrian army. Surrounded in West Beirut and subjected to heavy bombardment, they negotiated passage from Lebanon with the aid of Special Envoy Philip Habib and the protection of international peacekeepers.