Royal Air Force Capt. Christopher Knight, 14th Airlift Squadron pilot, signs a runway panel from Afghanistan that was used during Operation Allies Refuge at the Air Force Museum in Dayton, Ohio, July 11, 2022. The airfield signs and other items donated represent a piece of the Airmen's lives during the three and a half weeks in which the United States evacuated more than 120,000 people from Afghanistan. (U.S. Air Force photo by Airman Caleb Parker)