In earlier conflicts Hostile_encounter prior to the 1982 Israeli invasion Attack , including Operation Litani , Israel attempted to eradicate PLO bases from Lebanon and support Supporting Christian Maronite militias .

The government of Lebanon had been run Control under a significant influence of the elites among the Maronite Christians .

Fighting Hostile_encounter between Maronite and Palestinian forces ( mainly from the Palestine Liberation Organization ) began Process_start in 1975 , then Leftist , pan-Arabist and Muslim Lebanese groups formed Coming_to_be an alliance with the Palestinians .