A Polish Air Force C-130E cargo aircraft flies over Warsaw, Poland, during the country’s Armed Forces Day festivities, Aug.… https://www.rawpixel.com/image/8728352/photo-image-airplane-public-domain-natureFree Image from public domain licenseU.S. Air Force Staff Sgt. Katherine Bippus, 20th Security Forces Squadron unit deployment manager, climbs a ladder during a… https://www.rawpixel.com/image/8727990/photo-image-light-public-domain-personFree Image from public domain license