In 2011, the Ministry of Defense announced that they would buy MiG-29s from Russia by the end of the year, but this did not materialize. In October 2012 the Ministry of Defense returned a loaned Airbus A310-300 to MIAT Mongolian Airlines. From 2007 to 2011 the active fleet of MiG-21s was reduced. In 2013 the Air Force examined the possibility of buying three C-130J transport airplanes, manufactured by Lockheed Martin. Left without Russian aid, the Mongolian air force inventory gradually reduced to a few Antonov An-24/26 tactical airlifters and a dozen airworthy Mi-24 and Mi-8 helicopters.