AGGRESSIVE, SOURCE The Crusades: Cause and Purpose SOURCE The Crusades: Cause and Purpose The Crusades: Cause and Purpose http://www.christian-community.org/library/crusades.html SOURCE http://www.christian-community.org/library/crusades.html http://www.christian-community.org/library/crusades.html http://www.christian-community.org/library/crusades.html SOURCE http://www.christian-community.org...