The sixteen-year long civil war in Lebanon was caused by dissatisfaction over the distribution of political power. The system favoured Christians who fought to eject Palestinian armed forces, which sought to use the country as a spring board for attacks into adjacent Israel. Western intervention was repelled by suicide-bombing attacks. Lebanese Christians and Muslims sub-divided to fight each other. Dominated by competing war lords, this civil war was notable for massacres, treachery, atrocities, kidnapping, assassination, changing alliances of convenience, and invasions.