In what way was the first crusade launched in 1095 CE?

The First Crusade was launched in 1095 CE when Pope Urban II called for a military expedition to the Holy Land during the Council of Clermont. His speech aimed to rally Christians to reclaim Jerusalem from Muslim control, emphasizing the spiritual rewards of participating, including the forgiveness of sins. This call galvanized support across Europe, leading to the mobilization of knights and peasants who embarked on the crusade in 1096. The movement marked a significant moment in medieval history, intertwining religious fervor with the pursuit of territorial expansion.