Saladin destroyed Christian Crusader forces in Jerusalem ~Iridian(:
Jerusalem fell to Muslim forces under Saladin.
the Mongols.
They create centripetal forces that unite European countries
Libya is fighting with European forces.
Jerusalem fell to Muslim forces under Saladin.
Some other forces that continue the the division is the European nation and the other 29 countries.
When the Second Crusade ended, the European Christians lost control of the Holy Land (Jerusalem).
The Fatimids at the beginning, the Crusaders at the end.
After a plea for help from the Byzantine Emperor against invading Muslim forces, Pope Urban II called upon the European knights to go rescue Constantinople from Muslim takeover and defend the holy city of Jerusalem. In exchange, the knights were promised forgiveness of all of their past sins.
Assuming that this is referring to the First Crusade, the Christian Forces besieged and later conquered the city of Jerusalem. They forced the Muslim Forces to retreat and slaughtered any Muslims, civilian or military, that they found within the city walls.
Jerusalem