The Crusades were a series of religious wars, primarily in the medieval period, sanctioned by the Latin Church in Europe. These military campaigns, beginning in the late 11th century, aimed to reclaim or defend territories considered holy, particularly the Holy Land around Jerusalem, from Muslim control. An example is the First Crusade, which resulted in the capture of Jerusalem by Christian forces in 1099.
These religiously motivated expeditions had significant consequences, fostering cultural exchange, expanding trade networks, and leading to increased European influence in the Eastern Mediterranean. However, they also resulted in widespread violence, religious persecution, and long-lasting animosity between Christian and Muslim populations. The impact extended beyond immediate territorial gains, reshaping political landscapes and contributing to the development of European identity.