Israel invaded Lebanon again in 1982. Beirut was soon besieged and bombarded by the IDF; to end the siege, the US and European governments brokered an agreement guaranteeing safe passage for Arafat and Fatahguarded by a multinational forceto exile in Tunis. Despite the exile, many Fatah commanders and fighters remained in Lebanon, and they faced the War of the Camps in the 1980s in their fight with the Shia Amal Movement and also in connection with internal schisms within the Palestinian factions.