A member of the Japan Air Self-Defense Force (Koku-Jieitai) signals to a JASDF pilot during the 70th Anniversary of Operation Christmas Drop at Andersen Air Force Base, Guam, Dec. 5, 2021. OCD is the Department of Defense’s longest-running humanitarian aid and disaster relief training mission and provides relief to more than 55 islands throughout the Pacific. Operations such as OCD provide the U.S. and its partners the opportunity to enhance joint operational capabilities and maintain preparedness for real-world emergencies. (U.S. Air Force photo by Tech. Sgt. Joshua Edwards)