Wolfram Leibe, mayor of Trier, left, speaks with U.S. Air Force Col. Joe McFall, 52nd Fighter Wing commander, center, and U.S. Air Force Col. Steve Horton, 52nd FW vice commander during a National Mourning Day ceremony at a cemetery in Trier, Germany, Nov. 15, 2015. Leibe gave a speech during the ceremony addressing the importance of the day. (U.S. Air Force photo by Airman 1st Class Luke Kitterman/Released)