 Complete the following phrase:  The relatively benign environment at the beginning of the mission gave way to chaos as the civil war re-escalated following the assassination of President-elect Bashir Gemayel in September 1982. Subsequent political and military developments on the ground caused the MNF to be viewed not as a peacekeeper, but as a belligerent. In early 1984, after it became apparent that the government of Lebanon was no longer able to impose its will on warring factions as they entered Beirut and hostilities renewed, the MNF ended its presence mission in Beirut and went offshore before completely leaving Lebanon in July of the same year in the aftermath of the October 1983 