Fearing infiltration, ISIS would want proof your membership was genuine:
ANY western joiner would be asked to cut someone’s head off, even if purely for security reasons.
You’d make the trip over, do a 2 or 3 day orientation and then WHOOSH..! they’d have some crying, trembling person tied up for YOUR knife.
They’d probably have you do more than one —maybe ten, or more.
They’d want to be really REALLY sure you were just as nutty as them, if not more. For anyone coming from a western country, there would be NO helping out, “just getting the feet wet”.
I don’t think ANY western country should take ANY of these people back —EVAR.
"I was just a boy when the infidels came to my village in their Blackhawk helicopters. The infidels fired at the oil fields and they lit up like the eyes of Allah. Burning oil rained down from the sky and cooked everything it touched. I could only hide myself and cry as my goats were consumed by the fiery black liquid death. In the midst of the chaos, I could swear that I heard my goats screaming for help. As quickly as they had come, the infidels were gone. It was on that day I put a jihad on them. And if you don't believe it, then you'd better kill me now, because I'll put a jihad on you, too."