What 4 responsibilities did the caliph have?

The caliph had several key responsibilities, including serving as the political leader of the Muslim community, ensuring the implementation of Islamic law (Sharia), leading military campaigns to protect and expand the Islamic state, and overseeing the administration of justice and governance within the caliphate. Additionally, the caliph was expected to promote social welfare, maintain order, and uphold the teachings of Islam to guide the community.