This is tangential, but it could clearly have military applications. The images show the Wild Camel powered off-road cart. It attaches to an individual's waist, and the wheels are battery powered. It can obey commands to go uphill, downhill, forward, and backward. It can lightened the load by up to 75%. It's currently being used by firefighters, but I can see a version for the army grunts needing to carrying extra rucksacks, ammo, and other supplies while patrolling on foot.