U.S. Air Force Master Sgt. Phillip Peterkins, 39th Security Forces Squadron Training NCO in charge, leads a prayer during the opening ceremony of Police Week 2017, May 13, 2017, at Incirlik Air Base, Turkey. National Police Week began in 1962 after President John F. Kennedy signed a proclamation designating May 15 as Peace Officers Memorial Day and the week in which that date falls as Police Week. (U.S. Air Force photo by Airman 1st Class Devin M. Rumbaugh)