Islam is divided into two main Sunni and Shiite factions, there are a number of other small factions (such as Hawaliji faction Ismailis). Is considered the mainstream Sunni factions, also known as the orthodox camp, located in most Islamic countries, China is also mostly Sunni Muslims; Shiite followers mainly Iran, but also exist in other countries and regions , such as Iraq and other countries. The main difference between the two factions is that for the Prophet Muhammad on the recognition of the legitimacy of heirs. According to Shiite opinion, only the Prophet Muhammad's cousin Ali, son-in-chief and their immediate descendants (ie, Muhammad Hashim family) is the only legal heir, while the Sunnis that the Caliphate is the leader of the faithful, Prophet Muhammad's religious leaders in his capacity as the successor, whoever, as long as devout, can serve as caliph. Also acknowledged Abu Bakr, Umar, Osman served the first 3 caliph's legitimacy. Whether Sunni or Shiite, are the Muslim Brotherhood. They all believe the same one, "the Koran", compliance Hadith, are the sole faith of God and recognize God sent Prophet Muhammad the last messenger to mankind. And agree that the sole God, omniscient, omnipotent, authentic self-reliance, without beginning or end, no weight, no moving, no match does not occupy the time and space, intangible and invisible phase, justice, the highest in the universe is perfect.