Invisible weapons : liturgy and the making of crusade ideology

Throughout the history of the Crusades, liturgical prayer, masses, and alms were all marshaled in the fight against the Muslim armies. Invisible Weapons is about the prayers and liturgical rituals that were part of the battle for the faith. M. Cecilia Gaposchkin tells the story of the greatest collective religious undertaking of the Middle Ages, putting front and center the ways in which Latin Christians communicated their ideas and aspirations for crusade to God through liturgy, how liturgy was deployed in crusading, and how liturgy absorbed ideals or priorities of crusading. By connecting medieval liturgical books with the larger narrative of crusading, Gaposchkin allows us to understand a crucial facet in the culture of holy war.