Holy Land

This is a convenient short-hand for Christians (and Crusaders in particular) to refer to Palestine or the Kingdom of Jerusalem, since it is two short words, implies that the area can easily be distinguished from those round it (or that it stretches until one can find another border, which is period would extend it most way down Africa, across to India (since the Christians would not have recognised the Muslim rule in Arabia), and north into paga Russia), and invests it with a God-given aura (and thereby justifies almost any atrocity committed in its (re-)conquest or defence.

To the Muslims, arguably, the entire Earth is a Holy Land, merely awaiting their reconquest of it from the hands of the UnFaithful.