War of Liberation (1989–1990)

The War of Liberation (Arabic: حرب التحرير) was a sub-conflict within the final phase of the Lebanese Civil War between 1989 and 1990, in which the Lebanese Army loyal to General and Prime Minister Michel Aoun, appointed by previous President Amine Gemayel and headquartered in eastern Beirut, fought against the western Beirut-based Syrian Armed Forces and the Lebanese Army loyal to President Elias Hrawi and Prime Minister Salim el-Hoss, appointed by the Taif Agreement. Aoun launched several offensives against the Lebanese Forces in an attempt to establish his authority over East Beirut.

Source: Wikipedia — War of Liberation (1989–1990) (CC BY-SA 4.0)