A member of the U.S. Air Force picks up a piece of debris on a flight line during a joint runway cleanup with members from the German Air Force, and the Belgian Air Component Dec. 22, 2018, at an undisclosed location in Southwest Asia. The teams gathered together to retrieve trash, rocks, loose metal objects, or anything else that may be or could become a hazard for various aircraft using the area. (U.S. Air Force photo by Staff Sergeant Stephen G. Eigel)