What is crusades definition?

The Crusades were a series of religious wars fought between the 11th and 13th centuries by Christian armies from Europe against Muslim armies in the holy city of Jerusalem and surrounding territories in the Middle East. The Crusades were launched in response to a call from the Pope for Christians to reclaim the Holy Land, which had been under Muslim rule for centuries. The Crusades were characterized by brutal violence, including massacres of civilians and battles that left entire armies devastated. The Crusades had lasting effects on European and Middle Eastern history, religion, and culture. Some of these effects include increased trade, cultural exchange, and the spread of Christianity in areas of the Middle East. However, they also led to increased tension and conflict between Muslims and Christians, as well as the introduction of new religious and political ideologies that shaped the world for centuries to come.