It is said that people who are too much alike cannot easily live together, and the same goes for cultures as well. Both Islam and Christianity (which serves as culturally uniting factor for the West) are absolutist, monotheistic religions. Both are universal, in the sense of making claims to apply to all of humanity rather than a single race or tribe. Both are missionary in nature, having long made it a theological duty to seek out and convert nonbelievers. Both the Jihad and the Crusades are political manifestations of these religious attitudes, and both parallel each other closely.
But this doesn't entirely explain why Islam has had so many problems with all of its neighbors, not just the West.
In all these places, the relations between Muslims and peoples of other civilizations - Catholic, Protestant, Orthodox, Hindu, Chinese, Buddhist, Jewish - have been generally antagonistic; most of these relations have been violent at some point in the past; many have been violent in the 1990s. Wherever one looks along the perimeter of Islam, Muslims have problems living peaceably with their neighbors. ...Muslims make up about one-fifth of the world's population but in the 1990s they have been far more involved in intergroup violence than the people of any other civilizations. (Huntington p. 256)
Several reasons have been offered as to why there is so much violence associated with Islamic nations. One common suggestion is that the violence is a result of Western imperialism. Current political divisions among the countries are artificial European creations. Moreover, there is still lingering