“…The fact that all Christendom was operating as one power is proven by the unquestionable authority of the Roman papacy over Christians.  It is also proven by the general mobilization of Christian powers against Islam during the Crusades of the Middle Ages and even of the first quarter of this twentieth century.”
  (italics mine – OBJ)
--Hammudah Abdulati, Islam in Focus, American Trust Publications, London, 1975.
Jenkins, Mar 2003
The Western Incursions