They are not willing to die for a cause. In the same vein, businessmen usually make rotten leaders of crusades precisely because they focus on specific, attainable goals. Perhaps because most governments are so entangled in crusades. Tools for the Crusades Crusades tend to rely on certain key tools time and time again. I've listed the major ones below, but you should get the idea.
Individuality is suppressed.
Every act and ritual is often associated with the group. Emotions such as pride, loss, or confidence, come from the group and are shared. The group can go so far as to become a deity or an eternal living force that is indestructible and wonderful, most often in the case of religious crusades. Armies most often use this tactic. Since the natural tendency of a person is to avoid death and killing, they turn it into a game or a ritual.