A Japan Air Self Defense Force member smiles while learning how to use new equipment during a 374th Civil Engineering Squadrons Rapid Airfield Damage Repair demonstration Dec. 6, 2016, at Yokota Air Base, Japan. In addition to the RADR demonstration, during a three-day course, the 374th CES showed JASDF members techniques and capabilities in; explosive ordinance disposal, air field damage plotting and chemical, biological, radiological and nuclear defense. (U.S. Air Force photo by Airman 1st Class Donald Hudson/Released)