Eh, go look at footage out of Syria or parts of Africa--it's more a comment on the state of the civilizations going to war.

I'm not so sure. I can remember the feeling I got when the news during the Iraq war showed a couple of kids laughing like it was a big joke and listening to Metallica as they shelled Fallujah. In the US 40% of active duty members are less than 25 according. Humans have a long history of getting their young ones to do their dirty work. http://www.militaryonesource.mil/12038/MOS/Reports/2011_Demo...

Maybe in the Western World.

Right now there are thousands of child soldiers around the world doing things much worse than digging trenches. There are also a number of armed conflicts that are currently ongoing (although they aren't anywhere near the scale of something like WWII).