The creation of these Latin Crusader states did far more than the schism of 1054 to breed real practical division between Eastern Orthodox and Western Catholic Christians. Whenever the Crusaders conquered, they forcibly took over the churches of Easterners and set up their own Western Latin bishops, to whom they expected Eastern believers to submit. Indeed, the sometimes brutal way the Crusaders trod down the native Orthodox peoples of the Middle East became so hateful to the Orthodox, that they were soon fighting alongside the more tolerant Muslims to throw out the oppressive Crusaders!
N. R. Needham, 2000 Years of Christ’s Power; Part Two: The Middle Ages, pp. 191-192
