During the 1970s and the early 1980s, the Palestine Liberation Organization (PLO) launched multiple attacks on towns and villages of the Upper and Western Galilee from Lebanon. This came in parallel to the general destabilization of Southern Lebanon, which became a scene of fierce sectarian fighting which deteriorated into the Lebanese Civil War. On the course of the war, Israel initiated Operation Litani (1979) and Operation Peace For Galilee (1982) with the stated objectives of destroying the PLO infrastructure in Lebanon, protecting the citizens of the Galilee and supporting allied Christian Lebanese militias. Israel took over much of southern Lebanon in support of Christian Lebanese militias until 1985, when it withdrew to a narrow security buffer zone.