Both Christianity and Islam profess to be religions of peace - according to their major modern-day proponents. Islam even means peace if I recall correctly.
On the other hand reading the Bible and the Koran might give a different impression. Let's not forget that Christ himself said 'I bring not peace but a sword' (which, of course, is open to massive interpretation, especially given that fellow's tendency to speak in parables). Reading the Bhagavad Gita of the Hindu religion also might give people some interesting ideas about violence. As to the Buddhist Pali Canon (or Tripitaka, as it's known in some circles) ... well that tends to give a different impression.
Ho hum.