Master at Arms 3rd Class Jacky Ng and MA3 Jordan Frances, both assigned to Fleet Air Reconnaissance Squadron (VQ)3, U.S. Navy, jump over barriers while carrying jerry cans full of water as they make their through an obstacle course while participating in a fitness challenge as a part of Police Week, Travis Air Force Base, May 12, 2015. In 1962, President John F. Kennedy proclaimed May 15 as National Peace Officers Memorial Day and the calendar week in which May 15 falls, as National Police Week. Established by a joint resolution of Congress in 1962, National Police Week 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 Photograph by Heide Couch/Released)