Sgt. Maurice Rue-Whitfield, 1st Calvary Division, 215th Brigade Support Battalion, ground guides a Cayman during a training… https://www.rawpixel.com/image/8742430/photo-image-public-domain-personFree Image from public domain licenseA U.S. Air Force KC-135 Stratotanker aircraft refuels a Navy F/A-18F Super Hornet aircraft assigned to Strike Fighter… https://www.rawpixel.com/image/3318317/free-photo-image-aircraft-airplane-bomberFree Image from public domain licenseU.S. Army Sgt. David Diehl, from Alpha Company, 1st Battalion, 21st Infantry Regiment, provides security outside a school in… https://www.rawpixel.com/image/8741382/photo-image-public-domain-peopleFree Image from public domain license