Militaries regularly set up fueling stations at forward bases so that helicopters can get back to the fight as quickly as possible. However, requiring fuel crews creates huge risks and logistical headaches: you're sending people to a dangerous, isolated section of the battlefield for a fairly mundane role. Thankfully, the US Army might not need to take that risk for much longer. It's testing an unmanned station, the Autonomous & Robotic Remote Refueling Point (AR3P for short), that can top up a helicopter with no human involvement. Much like Tesla's robotic charger, it would use self-aligning, articulated arms to hook a fuel line to a helicopter all by itself.