During the war of 1975–1990, some right-wing militias were Israel's allies, and after the assassination of President Bachir Gemayel, Israel and Lebanon signed an agreement on 17 May 1983 which was a peace treaty in all but name. The Lebanese legislature ratified the treaty by a margin of 80 votes, but in a very weak and unstable domestic position president Amine Gemayel abrogated the peace treaty on 5 March 1984 under unrelenting Syrian pressure, after the U.S. Marines withdrew and after Israel had begun withdrawing from Lebanon.