Airmen prepare to off load a specialized medical container designed to transport individuals with infectious diseases at Al Udeid Air Base, Qatar, Sept. 18, 2020. The Negatively Pressurized Conex, or NPC, is configured for the C-17 Globemaster III and C-5 Super Galaxy aircraft to safely transport up to 28 passengers or 23 patients, including ambulatory and litter, around the globe. (U.S. Air Force photo by Staff Sgt. Kayla White)