I've been watching this miniseries on DVD called "WWI The War To End All Wars" and it's actually really interesting. What amazes me is the amount of earthmoving the armies did to build the trenches and forts. They didn't have mini excavators, skidsteers, CTL's, or any of that. They used horsedrawn implements, but mostly it was all dug by hand with pick and shovel. The amount of engineering that went into their fortifications is impressive, the speed with which they were built is even more impressive. You can still see remnants today. I've toured the battlefield at Verdun several times. The trench lines are still visible to this day. Great DVD and I'd be happy to pass it around. If anybody wants to watch it lets start up a list. We can mail it around to each other.