What were some problems faced during the crusades?

During the Crusades, one significant problem was the logistical challenge of supplying and transporting large armies across vast distances, leading to shortages of food and resources. Additionally, there were internal conflicts among different Crusader factions and rivalries with local Christian states, which undermined their collective efforts. Furthermore, the harsh conditions of travel and battle, including disease and unfamiliar terrain, took a heavy toll on troops. Finally, the Crusaders often faced strong resistance from well-organized Muslim forces, complicating their military objectives.