The division of the world into two mutually exclusive camps - the City of War and the City of Faith - lies at the heart of Islam's traditional view of existence. Places where Islam rules supreme and its laws are strictly obeyed are known as Dar al-Iman or the City of Faith. The rest of the world is signified under the title of Dar al-Harb or the City of War.

Holy Terror: The inside story of Islamic terrorism (1987)