You mistake the point Terribilis - whether knowingly or not I can only suspect. You posted some details of what I suspect you intended to illustrate a successful humanitarian military operation. But Iraq was decimating the Kurds through use of air power. The operation you describe sterilised that air power.

ISIS is not decimating (or worse) the Yazidi through air power but through land power.

So how do you think the Iraqi forces can resist that land power? The last rumble between Isis and them ended, did it not, with the Iraqi's abandoning their weapons and running away?   

Israel could be stopped by cutting off arms sales to it and cutting off the massive US subsidy.

Isis? Last I heard the assets they seized made them richer than the rest of Iraq. OK, maybe I exaggerate, but how far off is it?   They are apparently not susceptible to financial pressure, only military.


Similarly apparently Boko Haram outguns the Nigerian army (and like the Viet Cong hides in dense forest).



Oh, and finally - Israel may (although resistant) be susceptible to western outcries. ISIS or Boko Haram - you must be joking!