the idea that the world was divided into the mutually exclusive realms of Dar al-Islam and Dar al-Harb, “the realm of peace” and “the realm of war.” This schema depicted Islam as an oasis of brotherhood and peace surrounded by a universe of chaos and hatred. Anything a person did to expand Dar al-Islam constituted action in the cause of peace, even fighting and bloodshed, because it shrank the realm of war.
