These are the best history lessons. Most books have maps and arrows depicting movements and units. You could read his story and it could be from medieval times, or Afghanistan. What we do to our young is simply horrible.
And it never ends.
I watched a couple of more modern "war" movies with my son last night...13 Hours and Black Hawk Down. I had just seen 13 Hours, but want my kids to see it, too. It was definitely worth a second viewing.
But at the very beginning of BHD, the quote by Plato is, "Only the dead have seen the end of war."
I know that to be true...not from personal experience, but in my gut and heart, and with my common sense. There will never be a utopia here.
And this veteran, who was at Dunkirk, says the same here at 2 minutes 2:07:
http://www.youtube.com/watch?v=XwaJcZnR7us&t=2m7s