Liquid Armour!
Seems like a good idea, but all an enemy needs to do is tazer him first, fry the electronics, and shoot away!
America spends a fortune, and the enemy, which is usually a inferior country, finds a cheap and easy way around it!
Shane
This could also save most of the soldier against stepping on a mine, so it is worth developing more, just as long as the enemy doesn't figure out how to easily get around it!
Sal
When the Roads and Paths end, learn to guide yourself through the wilderness
Beyond the Path