



In 1982 Israel re-invaded Lebanon following the attempted assassination of its ambassador in London, despite being aware that the attack had been carried out by the Abu Nidal faction, which was at war with Arafat's PLO. In 1978, and again in 1981 and early 1982, the United Nations sponsored a cease-fire, and Israeli troops were withdrawn. Israel bombed targets in Lebanon and in 1978 launched a military invasion in to Southern Lebanon codenamed " Operation Litani". Throughout this time, artillery and rocket attacks were launched against Israel. Over the next few years, the Syrians and the PLO gained power in Lebanon, surpassing the ability of the official Lebanese government to curtail or control their actions. The presence of Palestinian forces was one of the main reasons that led to a Christian-Muslim conflict in Lebanon in 1975–1976 which ended with the occupation of Lebanon by peace-keeping forces from several Arab countries, including Syria. The PLO moved its primary base of operations to Beirut in the early 1970s, after Black September in Jordan. Main article: Palestinian insurgency in South Lebanon File:Flag of the Government of Free Lebanon.png SLAįile:Flag of the Government of Free Lebanon.png Saad Haddad.Israeli victory PLO forces evacuated after peace settlement destruction of much of Beirut An aerial view of the stadium used as an ammunition supply site for the Palestine Liberation Organization during a confrontation with the Israelis
