 Complete the following phrase:  Possibly formed in early 1983 and reportedly led by Imad Mughniyah, a former Lebanese Shiite member of Palestinian Fatahs Force 17, the IJO was not a militia but rather a typical underground urban guerrilla organization. Based at Baalbek in the Beqaa valley, the group aligned 200 Lebanese Shiite militants ficed by Iran and trained by the Iranian Revolutionary Guards contingent previously sent by Ayatollah Khomeini to fight the 