The Fifth Crusade was a significant event in medieval history, but there are various synonyms for it, such as the Crusade of 1217-1221, the Egyptian Crusade, and the Crusade of Damietta. The crusade was launched by European Christian forces with the primary goal of recapturing Jerusalem from Muslim control. However, a strategic shift during the crusade led to an attack on Egypt, which ultimately failed. Despite its nominal objective not being met, the Fifth Crusade had a significant impact on European-Middle Eastern relations and the balance of power at the time. These synonyms can be used interchangeably and still refer to the same historical event.