I am in some disagreement with Tom. The Christian Crusades against Muslims started over 450 years after the muslim's "Crusades" of conquest against their neighbors and Christians which were initiated around 630. I think lots of good intentions became perverted by money grubbers towards the end of the Christian "Crusades" but that monetary gain was not the reason for initiating the Crusades.
Nosimij there is a reason for this and islam's founder, "Muhammad" started battle with the first offensive "crusades". It is plain to see that the Christian "Crusades" were a response to the muslim "crusades" which started the whole thing. The muslims, even in their infancy were cruel, heartless and unforgiving towards anyone else and laid the sword to the "infidels".
However, the first Christian Crusades were actually missions and were not associated with warfare. That obviously changed morphing into defensive and offensive actions.
To deny the bloody legacy that islam is associated with from its very beginnings and that islamic actions did not initiate warfare is inconsistent with history. There was a very good reason for the Crusades and it was to recover conquered lands and to stop enslavement. In fact, the crescent roll that many of us enjoy was created in Europe after the muslims were thrown out as a reminder of their tyranny and the horrible cost to recover civilization. So much for the reminder today.
Regardless of what anyone believes about the history of the "Crusades", it is both self-evident and undeniable that islam is a problem to civilization. Raping and murdering children is vile yet the proponents of the Religion of Peace do little to nothing en masse to rebuke that type of behavior.....need you know anything else about islam?