June 6, 1982

Israel launches Operation Peace for Galilee into southern Lebanon. Israel claims the invasion was in order to remove PLO forces after several violations of a cease-fire, and most notably an assassination attempt against Israel's ambassador to the United Kingdom, Shlomo Argov, by Fatah - Revolutionary Council. Israel is allied with the Lebanese Christian army against the PLO, Syria, and Muslim Lebanese. As a result of the war, the PLO leadership is driven from Lebanon and relocates to Tunis.

Israeli troops remained in southern Lebanon, however, and the cost of the war and subsequent occupation drained the already troubled Israeli economy.