Ben Ellis, The Courses’ at Andrews assistant golf superintendent, performs routine maintenance on the course at Joint Base Andrews, Md., July 31, 2013. The 54-hole course is the only one of its kind within the Department of Defense. It often hosts U.S. heads of state, high-ranking military officials, political leaders and even the President of the United States. (U.S. Air Force photo/ Airman 1st Class Nesha Humes)