Was fooling around on the Bachmann model train page, and in their discussion forum was a link to some movie footage on American 2-foot gauge military railroads in France during the first World War. This is the YouTube link to that footage, and if you look to the right, it looks like there might be some other items, too.

http://www.youtube.com/watch?v=PTL3Pl13QVQ

One of those other links:

http://www.youtube.com/watch?v=xVcHZ-cT ... re=related

Explore and enjoy,

It gets worse. In that same era, the Italians had Military Trackless Trolley lines!