books.google.co.jp - The capture of Jerusalem by the "First Crusade" in 1099 heralded the beginning of an armed struggle in Palestine. It was a war dominated by the building, securing and besieging of castles. This work covers the military history of the crusades and investigates the role of a wide range of castles....http://books.google.co.jp/books/about/Unknown_Crusader_Castles_e.html?id=K_n5zfuqpHgC&utm_source=gb-gplus-shareUnknown Crusader Castles (e)