"According to Muslim cannon Law the world is divided into two camps, Dar-ul-Islam (abode of Islam) and Dar-ul-Harb (abode of war). A country is Dar-ul-Islam when it is ruled by Muslims. A country is Dar-ul-Harb when Muslims only reside in it but are not rulers of it. ... The moment the land become subject to the authority of a non-Muslims power, it ceases to be the land of the Muslims. Instead of being Dar-ul-Islam it becomes Dar-ul-Harb. (294)"
January 1, 1970
https://en.wikiquote.org/wiki/Divisions_of_the_world_in_Islam