Lebanese Civil War (1975-1990); the original conflicting parties were the Lebanese national movement made up of Muslim forces and the Palestinian PLO and the Lebanese front made up of Christian; pro-Western forces. In the later course of the war; changing coalitions of different groups and several interventions from outside followed.Palestinian fighters from the Abu Nidal Organization (ANO); a split from the PLO; examine the wreckage of a downed fighter plane in Lebanon.Photo; 20.11.1983