Don't overcomplicate the issue. Jihad is an Islamic tradition from the Middle Ages. I could care less if ISIS crawled out from under a rock. There is no apology or explanation adequate for genocidal behavior. Executing prisoners of war and and laying siege to civilian populations on the basis of no overt hostile actions and only to destroy their "infidel" religious beliefs is barbaric. ISIS are barbarians in the truest sense.

These (ISIS) Jihadists have used the time honored Islamic Holy War to murder their infidel co-religionists. There next goal may be us devil infidels of other than Muslim belief. That includes billions of people.

I don't care what someone believes in: but don't fuck with me because I don't believe in the same thing as you. If the people in the Arab (and Persian) countries want to live under their Sharia laws they have that right. However, the fanatic Jihadists do not have the right to mass-murder their own people in Allah's name.