What is a Crusade?

Answer:
A Crusade is a call to arms to reclaim Jerusalem from the infidels(muslims). In the First Crusade the pope declared that if Christians should take up the cross then God will grant them access into Heaven. In other words (if you're not a Catholic or Muslim), a holy war.
First answer by ID1279725845. Last edit by Anna10017. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 3 [recommend question].