The U.S. military’s latest autonomous aircraft technology is all about keeping troops safe. It could also radically change how they resupply units in combat zones. The helicopter is a Vietnam War-era UH-1 Huey, and it’s able to fly its own missions without a pilot at the controls. The helicopter is meant to resupply forces in combat zones with ammunition, water, batteries, and even blood. It could eliminate the need for troops to take supplies through dangerous conditions.