I had an interesting discussion with some fellow wargamers the other day. We reviewed what we knew of Japanese field fortifications, dugouts, and bunkers. It turns out we did not have a lot of good information. This prompted me to dig a bit and I found these interesting studies the US Army produced.
These are public domain documents. I would really like to hear from others on what they think about these. I particularly liked the overview of field fortifications. This will help building terrain for a tabletop.
Outland Games 