Iran is using al-Qa'idah as a tool in its own fight with the United States and the West. There is no common ideology between the Iranian Islamic Revolution (enqelab-e islami) and the al-Qa'idah Organization (tanzim al-qa'idah) other than the fact that they are both Muslim and favor the imposition of their own interpretation of Shari'ah law. The Iranians follow the doctrine of the Shi'a sect of Islam, while al-Qa'idah is a Sunni fundamentalist group. This relationship is also complicated by the fact that al-Qa'idah is an Arab organization, while the Iranians are predominantly Persians - the animosity between the two runs long and deep.