U.S. Air Force Airman 1st Class Brandon Ritenour, 633rd Civil Engineer Squadron heavy equipment operator, maneuvers a loader at Langley Air Force Base, Va., Jan. 9, 2015. Ritenour’s squadron designs, constructs, maintains and repairs hundreds of facilities and thousands of acres, to support approximately 151,000 active-duty military members, civilians and retirees, and $3.4 billion in mission assets. (U.S. Air Force photo by Airman 1st Class Devin Scott Michaels/Released)