National Museum of Military History in Diekirch brings history alive DIEKIRCH, Luxembourg – A flight helmet, flight suit and personal items, belonging to Capt. Luke Johnson, 52d Fighter Wing pilot, killed during an F-16 training mission near Spangdahlem Air Base are on display at the National Museum of Military History in Diekirch, Luxembourg. The items were donated by his wife in remembrance of the former 23rd Fighter Squadron pilot. (U.S. Air Force photo by Iris Reiff/released).