I’ve always wondered what the Islamic ulema teach their students. Here is a site that offers a window into this world. It’s a blow by blow commentary of the passages in the Koran that call for a holy war. Jihad: The Holy War of Islam and Its legitimacy in The Koran
If you wanted to know, here is why Christianity is lacking,
There is no substance in Christianity; it contains no more than a few moral teachings that form a set of advice such as “tell the truth”, “do not tell lies”, “do not gobble up the wealth of others”, and so on. Such things do not call for jihad? Islam however is a religion that sees it its duty and commitment to form an Islamic state. Islam came to reform society and to form a nation and government. Its mandate is the reform of the whole world.