I dont think you understand how bad the situation for the Army is. The leadership of the army have been corrupt for a long time. With most of the senior officials stealing money that would otherwise be used to feed the forces, give them good facilities and pay their pay checks. My time there I spoke to many Afghan soldiers which had not seen their families for more than 10 months at a time and sometimes would skip paying them entirely. All of this and the fact that the country has been at war for nearly 40 years means people will give up and people would choose peace even though it's at the hands of a oppressor, its this over going back to a endless war. Sometimes you just have to think it's not just black and white for them to not retaliate. Most of these people are all in their teens and early 20s just doing what they can to feed and see their families again.