by April 1982, the United Nations had recorded 2,125 Israeli violations of Lebanese airspace and 652 violations of Lebanese territorial waters. Israel amassed twenty-five thousand soldiers on the border and continued to illegally deploy provocative maneuvers to the south of Lebanon. The PLO resisted retaliation and so did the Lebanese government. But Yousef correctly surmised that Israel would find a reason to invade, regardless of whether the PLO took action.

