ISIS believes that the Shiites are apostates and must die in order to forge a pure form of Islam. The two main branches of Islam diverge in their beliefs over who is the true inheritor of the mantle of the Prophet Muhammad. The Shiites believe that Islam was transmitted through the household of the Prophet Muhammad. Sunnis believe that it comes down through followers of the Prophet Muhammad who, they say, are his chosen people.
The Islamic State of Iraq and Syria (ISIS), also called Islamic State of Iraq and the Levant (ISIL), has terrorized large swaths of Iraq and Syria in its drive to establish an Islamic state in the Middle East ruled by strict shariah law. The militant group is made up of fundamentalist Sunni Muslims.
Where does ISIS get its money? ISIS makes more than $10 million each month through extortion, the collection of taxes and fees in areas under their control, selling oil from fields it controls, and through looting the homes of people who fled under threat of the militants.
Who supplies ISIS with weapons? ISIS has armed itself with weapons seized from the battlefield in Iraq and Syria. The group has also reportedly received funding from wealthy individuals in Saudi Arabia, Kuwait, Turkey, and Qatar and then used the money to buy arms on the black market. These nations support ISIS because both consider Iran and Syria a threat, share anti-Shiite sentiment, and want to protect fellow Sunnis from violence sanctioned by Assad and Maliki. Saudi Arabia, Kuwait, and Qatar have passed legislation banning such aid, but the governments have done little to enforce the laws. According to a Dec. 2013 study by the Brookings Institution, donations are funneled through Kuwait and make their way to militant groups. “Today, there is evidence that Kuwaiti donors have backed rebels who have committed atrocities and who are either directly linked to al-Qa’ida or cooperate with its affiliated brigades on the ground,” the report said.
What is Iran. Shia Muslim and in my thoughts will be looked upon as the Shiites are by ISIS now. Thus ISIS may be in a fight with Iran as well.