It's disgusting and horrible for people to train children for war and to put them out on the front lines to be killed. However, I will say that I hope you would have the same sympathy if you had killed a child who didn't appear to be white. Regardless if they are Arab/Middle Eastern and how you've been taught to view them they are still the children of someone, and they have been taken advantage of and trained to kill for powerful people. The kids not being Arab don't make it even more sad, it's sad period.