Easy way to fix this.
1) Put the insurgents in the building with the ordinance.
2) Use an incendiary device to detonate all ordinance.
Take pictures, video and post that. If beheading captive and helpless soldiers is the way they want to play; let’s explain things in terms that they can understand.
You come here, you bring weapons, you get blown to bits.
No babysitting in an air-conditioned complex, no TV, no Koran, no meals ... ka-boom. That’s the way things were handled in WWI and WWII; and these problems sorted themselves out pretty quickly.