Col. Elvert Gardner, National Defense University student, hits a chip-shot during the 2015 National Police Week golf tournament at Joint Base Andrews, Md., May 12, 2015. Established by a joint resolution of Congress in 1962, NPW pays special recognition to those law enforcement officers who have lost their lives in the line of duty for the safety and protection of others. (U.S. Air Force photo/Airman 1st Class Ryan J. Sonnier)