These are used for Terrain Model Kits in the Army. You can use these to identify unit locations and size of the elements. I have made this to brief to the soldiers and use a visual representation of the area that the units are in. The unit inserts have a small hole in order to place magnets, so they pop in and out of the flag, this way you can show infantry, mechanized infantry, artillery, aviation and more. I have also created a foldable tripod and smaller magnetized ones that fit on a white board inside a TOC. 

I am aware that most people will not use this, but I figured I cannot be the only nerd to want to make something tangible rather than a folded-up piece of paper dictating unit locations.