Bilateral relations between the Islamic Republic of Iran and the Kingdom of Saudi Arabia have been strained over different geo-political issues such as the interpretations of Islam, aspirations for leadership of the Islamic world, oil export policy and relations with the United States and other Western countries. Although Saudi Arabia and Iran are both Muslim-majority nations and follow and rule through Islamic scripture, their relations are fraught with hostility, tension and confrontation, due to differences in political agendas that are strengthened for their differences in faith. Saudi Arabia is a right-wing conservative "Wahhabi" Sunni Islamic kingdom with a tradition of close ties with the United States and the United Kingdom. Iran is a Twelver Shia Islamic Republic founded in an ant