I like how "defending your country from a foreign invading army" suddenly becomes "insurgents that needs some killing".
War sometimes is a necessity, invasion, hardly.
The US purposely stationed troops in the Philippines in the 40's and parked a large number of battleships as far West as possible even though Japan viewed this as hostile actions. And we were surprised when Pearl Harbor happened. Here in the US we viewed Pearl Harbor as a sneaky dirty sucker punch. I imagine that if I was in Japan and we had won the war it would have been looked on as a stroke of genius.
I have no delusions about our troops being angels but I will not condemn their actions. I heard one Vietnam vet that was a gunner in a helicopter describe it this way; "When you fly over a rice patty with some farmers working in it and they smile and wave at you, you feel good and wave back. Then, as your flying away they suddenly pick up rifles and start firing at you. What do you think happens the next time you see farmers in a rice patty?"
I read another report from troops in Iraq that talked about the frustration of taking prisoners, "It gets real hard when you see people that you took prisoner back on the streets a few weeks later taking shots at you. It makes you really question the benefits of taking prisoners and the justice system."
When you choose to fight a guerrilla war that means your willing to sacrifice innocent civilians for the cause. If you want to hide among them then you can expect them to get hurt. This does not make it ok to hurt civilians but it is a reality.
I am amazed that their are not more reports of bad things happening.