A fuel hose lays on the ground underneath an F-16 Fighting Falcon assigned to Kunsan Air Base, Republic of Korea, at Eielson Air Force Base, Alaska, June 18, 2021. Laboratory petroleum, oil and lubricants Airmen ensure the fuels distributed to aircraft are safe and within guidelines to ensure the F-16’s mission success. (U.S. Air Force photo by Senior Airman Suzie Plotnikov)