The crusades, judged by what they set out to accomplish,
must be accounted an inglorious failure. After two hundred years of conflict,
after a vast expenditure of wealth and human lives, the Holy Land remained in
Moslem hands. It is true that the First Crusade did help, by the conquest of
Syria, to check the advance of the Turks toward Constantinople. But even this
benefit was more than undone by the weakening of the Roman Empire in the East
as a result of the Fourth Crusade.
WHY THE CRUSADES FAILED
Of the many reasons for the failure of the crusades, three
require special consideration. In the first place, there was the inability of
eastern and western Europe to cooperate in supporting the holy wars. A united
Christendom might well have been invincible. But the bitter antagonism between
the Greek and Roman churches effectually prevented all unity of action.
The emperors at Constantinople, after the First Crusade, rarely assisted the
crusaders and often secretly hindered them. In the second place, the lack of
sea-power, as seen in the earlier crusades, worked against their success.
Instead of being able to go by water directly to Syria, it was necessary to
follow the long, overland route from France or Germany through Hungary,
Bulgaria, the territory of the Roman Empire in the East, and the deserts and
mountains of Asia Minor. The armies that reached their destination after this
toilsome march were in no condition for effective campaigning. In the third
place, the crusaders were never numerous enough to colonize so large a country
as Syria and absorb its Moslem population. They conquered part of Syria in the
First Crusade, but could not hold it permanently in the face of determined
resistance.