The Khomeini regime has faced severe challenges from several opposition groups, including royalists, National Front bureaucrats, intellectuals and professionals, communists, guerrilla organizations, Kurdish rebels, and distinguished mujtahids (Shia clerics whose demonstrated erudition in religious law has earned them the privilege to interpret law). Of these, the royalists and the National Front leaders have operated mainly from foreign bases or underground cells. The communists were purged in 1983 when the Tudeh's leadership was almost entirely eliminated. The main guerrilla group, the Mojahedin, claimed to have made strides in organizing a war of attrition against the regime. But because it has operated since July 1986 primarily from Baghdad, thus giving the impression of collaboration with Iraq, the Mojahedin's effectiveness and credibility may have been lessened by the war. The Kurds have been fighting the regime since their 1979 rebellion, even though Tehran has kept them off balance by using Pasdaran forces. Finally, National Front politicians have openly displayed their differing views, mostly in West European capitals, although the group led by former Prime Minister Bazargan was the only domestic "opposition" party tolerated by the regime.

Data as of December 1987