 On July 31, 2012, Lockheed announced a second service extension for the K-MAX in Afghanistan for the Marines, then on 18 March 2013 the Marine Corps extended its use of the unmanned K-MAX helicopters indefinitely, keeping the two aircraft in use "until otherwise directed".At the time of the announcement, they had flown over 1,000 missions and hauled over three million pounds of supplies.Assessments for their use after deployment were being studied.