A sect of Islam to which about 90% of Muslims subscribe. In all nations except Iran, Iraq, and portions of Lebanon, a majority of Muslims are Sunni. Sunnis differ from Shias in their belief of who should have succeeded Muhammad as caliph. As the Sunni leaders historically held more power through more caliphates, in a majority of the areas controlled by Muslims, the people identified with Sunni Islam. Sunni Muslims differ in their interpretations of sharia (fiqh), with Indonesians, Saudi Arabians, and North Africans all having different schools of law.