Although the long term causes of the Crimean War probably were more crucial, the immediate causes of the war — ostensibly, at least — were over religion, particularly over the protectorship of the Holy Places in Jerusalem. The Holy Land was part of the Muslim Ottoman Empire but also was the home of Judaism and Christianity. In the Middle Ages, Christian Europe and the Muslim east had fought the Crusades over control of this land. However, the Christian Church was divided into numerous small denominations. The Eastern Orthodox Church and Roman Catholic Church were the two major branches of Christianity. Unfortunately, these main denominations could not work together. Both of them wanted to control the Holy Places.