U.S. Air Force defenders push a Humvee out during the Security Forces Squadron Fire Team Challenge during Police Week, May 13, 2015, at Aviano Air Base, Italy. The Humvee push was one of 12 stations set up to test mental and physical strength. During the week, ceremonies, memorials and other events took place to honor the men and women who have served in the line of duty. (U.S. Air Force photo by Airman 1st Class Cary Smith/Released)