In Islamic tradition, the responsibility of governance within the limitation of shariah is performed by the Caliph, who is the leader of the Islamic community. The Caliph is responsible for ensuring that Islamic law, or shariah, is upheld in all aspects of society, including the political, social, and economic spheres. The Caliph is also responsible for maintaining justice and equity, protecting the rights of all citizens, and ensuring that the Islamic community is united and strong. The role of the Caliph has been historically important in Islamic history, and has been filled by a number of different individuals and dynasties over the centuries.