"Islam is unique among the religions of the world in having a doctrine of religious imperialism. Muhammad, the Prophet of Islam, tells his followers to call people to Islam, and if they refuse [the offer to convert], then to offer them second-class dhimmi status or war:
“Fight in the name of Allah. Fight against those who disbelieve in Allah. Make a holy war.. When you meet your enemies who are polytheists, invite them to three courses of action.. Invite them to Islam; if they respond to you, accept it from them and desist from fighting against them…If they refuse to accept Islam, demand from them the Jizya [the tax on non-Muslims specified in Qur’an 9:29]. If they agree to pay, accept it from them and hold off your hands. If they refuse to pay the tax, seek Allah’s help and fight them."
Conversion, subjugation, or war: there is not and never has been a theological imperative of this kind in Christianity. [or any other major religion]"