The predominantly Shia residents of south Lebanon had born the brunt of the Israeli invasion, which sent floods of refugees into the Beqaa and Beirut (already teaming with a 300,000 strong southern "poverty belt" of newly urbanized Shias), eager for recruitment. Many politicized Shias also felt victimized by the entry of an American and European multi-national force (MNF) into Beirut in 1982, not only because it was perceived as pro-Israeli, but also because its mission was to support a government beholden to the right-wing Christian Phalange Party (led by then-President Amine Gemayel) and Sunni Beiruti notables (e.g. Prime Minister Shafik Wazzan) and quick to assert its newfound strength by unceremoniously ejecting Shiite squatters from posh neighborhoods of West Beirut near the airport. Although Hezbollah avoided direct confrontation with the state, it lashed out with fury at the MNF, most notably with the October 1983 twin suicide bombings that killed more than 300 American and French servicemen (1983 Beirut barracks bombing), forcing its withdrawal in 1984. The following year, in the face of mounting Hezbollah attacks, the Israel Defense Forces (IDF) began redeploying to a thin "security zone" in the south.