13.1 miles to celebrate 71 years Published Sept. 25, 2018 By Senior Airman Kirby Turbak 39 Air Base Wing Public Affairs INCIRLIK AIR BASE, Turkey -- Incirlik Air Base, Turkey, hosted a half marathon on Sept. 22, 2018, in celebration of the U.S. Air Force’s 71st birthday on Sept. 18. The marathon had over 60 participants that included U.S., Turkish and Spanish members, who completed a total of 13.1 miles.