A superb and definitive one-volume account of the Crusades, the impact of which still resonates to this day. In the eleventh century, a vast Christian army, summoned to holy war by the Pope, rampaged through the Muslim world of the eastern Mediterranean, seizing possession of Jerusalem, a city revered by both faiths. Over the two hundred years that followed this First Crusade, Islam and the West fought for dominion of the Holy Land, clashing in a succession of chillingly brutal wars, both firm in the belief that they were at God's work.