DoD Police Officer Daniel Tice, 914th Security Forces Squadron, stands guard next to a wreath and the flag lowered at half-staff in recognition of a National Police Week memorial observance in front of the 914th Air Refueling Wing headquarters building at the Niagara Falls Air Reserve Station, N.Y. on May 15, 2019. Members of security forces changed guard every 30 minutes to pay tribute to local, state, federal and military law enforcement officers who serve and protect us with courage and dedication and to honor those who have fallen in the line of duty. The observance continued until May 19. (U.S. Air Force Photo by Peter Borys)