Lebanon’s 15-Year War, 1975-1990

Lebanese Civil War, (1975–90) Civil conflict resulting from tensions among Lebanon’s Christian and Muslim populations. The conflict was exacerbated by socioeconomic disparities and the presence in Lebanon in the 1970s of fighters from the Palestine Liberation Organization (PLO). In 1975 Lebanon’s Muslims and leftists supported the PLO and sought more political power; its Christians, seeking to maintain their political dominance, opposed the PLO.