Thule runway repairs
THULE AIR BASE, Greenland -- Contractors work to upgrade the Thule Air Base runway July 11, 2015. The first half of the project -- the first 5,000 feet of the 10,000 foot runway -- began in early June and is scheduled to be completed by Sept. 15. The second half of the upgrade will begin next year. (U.S. Air Force photo by Tech. Sgt. Jared Marquis)