Well if you want examples, think about the Klan. All in the name of a White, Anglo-Saxon, Protestant religious movement...many of the supremacist groups use religion. Timothy McVeigh had a 'Christian perspective' to his cause. Even among more mainline groups they espouse a view to take control of government and force a religious doctrine on society which is no different than the Taliban or other Muslim Imams or Mullahs. Our favorite nut in Kansas is another one who has no problem espousing violence although no one has taken him up on his threats. You have Eric Rudolph as well.
The point is that there are examples all throughout history of groups through religion going at it. In the former Yugoslavia it was about Christianity (two sects) and Islam. Even in Macedonia and Kosovo this continues. Darfur, Ireland, Philippines, the Caucasus, etc. All of the Crusades were in effect wars to drive out the other religion.