On the surface this is true, but things should be put in their proper context.
The Holy books of each faith give completely different commands on warfare and the conversion of people from other Faith's.
The Hebrews of the Old Testament were commanded very specifically who and why to fight against. The primary enemy of Israel were the Canaanites, or worshipers of Baal, Anat and those that attacked Israel, and took Hebrew slaves to use as human sacrifices to their Gods. Jews have always been Gods chosen to protect and preserve his Commandments, never to spread the faith by violent warfare.
Christians follow the New Testament where Christ sent his followers out a sheep among wolves. Never in Jesus teachings, or those of his Disciples, or the Apostles, can you find any command to violently convert anyone. As a matter of fact, Christian Disciples were instructed that any town that rejected Christ's teaching, you were to leave that town, and shake the dust off your feet from it.
Islam never makes the claim that Mohammed was peaceful, or that it doesn't encourage violence on those who will not submit to Islam. As others have posted above, Mohammed attempted to convert Jews, and then Christians to his new religion, and eventually became violent after they refused him.
What individuals of any Religion DO, is often not what the Scriptures of that particular faith teaches.
I encourage anyone that has an inquiring mind to actually read the major religious books of the World, instead of accepting what others tell you about them.