Snapshot: Police Week Retreat Ceremony Published May 23, 2017 By Mauricio Campino DOVER AIR FORCE BASE, Del. -- A 436th Security Forces Squadron flag detail march with a folded U.S. Flag at the end of a retreat ceremony May 19, 2016 at Dover Air Force Base, Del. The ceremony included a guest speaker, a poem recital and a commemoration of U.S. Air Force Security Forces personnel killed in combat. (U.S. Air Force photo by Mauricio Campino)