The Assassin Altaïr Ibn-La'Ahad often used guard towers to survey the area during the hunt for the Templars. Guard Towers were the center of guard activity in a district. They were guarded by several high-ranking guardsmen, with more patrolling the nearby area. A single archer was always found on the tower itself. During an assassination, if Altaïr was exposed, some of his targets fled towards the district's guard tower. Upon reaching it, they became more difficult to kill, as they would be reinforced by several guards.