The Crusaders, traveling through Asia Minor, plundered and destroyed cities, murdered infidels, occupied strongholds already existing in these areas, and created fortification systems.

In this way, powerful castles-fortresses were created: Kerak and Shobak in Jordan, Nimrud near the Golan Heights, Belvior in Galilee, a fortress in the Gulf of Aqaba, Krak de Chevaliers.