Army Sgt. 1st Class James Stineman, a paratrooper assigned to Dog Company, 3rd Battalion, 509th Parachute Infantry Regiment… https://www.rawpixel.com/image/8708679/photo-image-public-domain-person-gunFree Image from public domain licenseArmy paratroopers assigned to the 3rd Battalion, 509th Parachute Infantry Regiment, 4th Infantry Brigade Combat Team… https://www.rawpixel.com/image/8708682/photo-image-fire-public-domain-peopleFree Image from public domain licenseAble Company, 3rd Battalion, 509th Parachute Infantry Regiment, 4th Brigade Combat Team (Airborne), 25th Infantry Division… https://www.rawpixel.com/image/4035707/photo-image-plant-public-domainFree Image from public domain licenseU.S. Army Sgt. Brian Sharpe, an Able Company, 3rd Battalion, 509th Parachute Infantry Regiment, 4th Brigade Combat Team… https://www.rawpixel.com/image/4035710/photo-image-plant-personFree Image from public domain licenseAfter donning gas masks, U.S. Army paratroopers assigned to Dog Company, 3rd Battalion, 509th Parachute Infantry Regiment… https://www.rawpixel.com/image/8727951/photo-image-public-domain-united-statesFree Image from public domain license