In God's Battalions, Rodney Stark argues that the medieval Crusades were not waged in order to gain land, steal money, or to win converts as popularly believed today. Instead, Stark suggests that the Crusades were foremost a military response to unwarranted aggression by expanding Turkish invaders. By looking at the history of the seven major Crusades from 1095 to 1291, Stark argues that the crusaders launched their campaign because of extensive Islamic provocation after centuries of repeated attempts to colonize the West. Stark presents a thought-provoking contribution to our understanding of this tumultuous period that is certain to spark debate!