United States. Central Intelligence Agency, CIA World Fact Book, 2004 — Iran (2004)
“ During 1980-88, Iran fought a bloody, indecisive war with Iraq that eventually expanded into the Persian Gulf and led to clashes between US Navy and Iranian military forces between 1987-1988. Iran has been designated a state sponsor of terrorism for its activities in Lebanon and elsewhere in the world and remains subject to US economic sanctions and export controls because of its continued involvement. ”
