Pakistan is still blockading NATO war supplies passing through the port of Karachi in response to last month’s killing of 24 Pakistani soldiers by an alliance air strike. But inside Afghanistan, supply lines are about to get a lot safer for NATO’s logisticians. On Saturday, the Marine Corps flew history’s very first combat resupply mission using a robot helicopter. The unmanned Kaman K-MAX successfully hauled a sling-load of cargo out to an unspecified base, presumably somewhere in southern Afghanistan.

The successful first flight, plus a couple test runs earlier last week, “were in preparation for sustained operations,” Jeffrey Brown from Lockheed Martin told Paul McLeary of Aviation Week. Lockheed has partnered with Kaman and the Marine Corps to demonstrate two of the unmanned supply choppers in combat.

The Marines’ K-MAX is a pilotless version of a popular twin-rotor helicopter. The GPS-guided robo-K-MAX weighs in at just 2.5 tons, but can carry 3.5 tons of cargo some 250 miles. The K-MAX beat out Boeing’s smaller A160 Hummingbird unmanned helicopter for the Marine Corps demonstration contract. And the Marines, Army, Navy and Air Force are all considering buying robot supply aircraft in large quantities.