WW III, of course.... but this time with nukes!
Worst part... the Muslims don't really care if they all die in a nuclear holocaust. After all, we Westerners will all "go to Hell" while they will all "go to Heaven"... so what if EVERYBODY DIES AND PLANET EARTH IS REDUCED TO A CINDER? THEY STILL WIN! That's what they believe! FUCKING STUPID MANIACS! Not the kind of enemy anyone would want to face.
It's bad enough dealing with an enemy with "nothing to lose"... but dealing with one "happy to die so long as you die also"? Hard to get your mind around that concept.