Military forces live and die by their weapons, but those aren't the only tools that matter in a battle. There are all sorts of gadgets and gizmos that can make troops safer and more lethal. Here are 7 of the best:


1. Backpack that can listen to enemy communications

Photo: US Marine Corp Sgt. Tyler C. Gregory

While putting maps on iPads isn't exactly a new use of the device, Marine aviators taking them to the battlefield in Cobra attack helicopters is. The iPads replace the paper maps and charts the pilots normally carry.