Col. Jason Bailey, front, 52nd Fighter Wing commander, Chief Master Sgt. Alvin Holland, back, 52nd FW acting command chief, render a salute after laying down the wreath during a German National Day of Mourning observance at Kolmeshöhe Military Cemetery in Bitburg, Germany, Nov. 19, 2017. The day, known as Volkstrauertag in German, observes the human cost of war and was established following the conclusion of the First World War. (U.S. Air Force photo by Staff Sgt. Jonathan Snyder)