Mohammed spoke thus in the holie Koran, bluester:
9.29: Fight those who do not believe in Allah, nor in the latter day, nor do they prohibit what Allah and His Apostle have prohibited, nor follow the religion of truth, out of those who have been given the Book, until they pay the tax in acknowledgment of superiority and they are in a state of subjection.
9.73: O Prophet! strive hard [make war] against the unbelievers and the hypocrites and be unyielding to them; and their abode is hell, and evil is the destination.
Is it not nice that Islam preaches that non-Muslims are only good either dead or tax slaves. Sounds like a religion of peace and harmony to me.