The crusades. The conflict of “the sea and the river” in the 12th and 13th centuries

This Paper does spotlight on the Age of Crusades which witnessed an opposition between the Mediterranean Sea, as the Crusaders came from its western Shores and the Rivers of Syria, Iraq and Egypt.The crusaders Wanted to subdue the Arab rivers, The Arab rivers, we noticed that in principalities of Edessa which located in Euphrates and Antioch in Orontes.The invaders tried to expand The Asian domain into Africa, but the Nile Stood firmly of their targets.that eventually, was one of the most important factors of failure crusader's movement.