Grand Canyon National Park, a free government service (1938) poster by Chester Don Powell. Original public domain image from… https://www.rawpixel.com/image/8628551/image-art-vintage-public-domainFree Image from public domain licenseOn June 17, 2020, Tucson Sector Border Patrol Agents conduct operations at the Highway 86 checkpoint near Tucson, Ariz. U.S.… https://www.rawpixel.com/image/8723762/photo-image-public-domain-person-dogFree Image from public domain licenseU.S. Marines with 2nd Battalion, 7th Marine Regiment, 1st Marine Division, 1st Marine Expeditionary Force set up perimeter… https://www.rawpixel.com/image/8728036/photo-image-public-domain-people-gunFree Image from public domain license3rd ASOS special warfare Airmen conduct unsupported, sustained cold-weather training during Operation Agipen 2. https://www.rawpixel.com/image/10994056/photo-image-person-light-crossFree Image from public domain licenseA C-17A Globemaster III aircraft from the 729th Airlift Squadron refuels from a KC-135R Stratotanker aircraft with the 336th… https://www.rawpixel.com/image/8727855/photo-image-airplane-public-domainFree Image from public domain licenseU.S. Air Force Pararescuemen, assigned to the 48th Rescue Squadron Davis Monthan AFB., carry litter patients during a… https://www.rawpixel.com/image/8742309/photo-image-public-domain-person-natureFree Image from public domain licenseOn June 17, 2020, Tucson Sector Border Patrol Agents conduct operations at the Highway 86 checkpoint near Tucson, Ariz. U.S.… https://www.rawpixel.com/image/8726484/photo-image-public-domain-person-dogFree Image from public domain licenseU.S. Marine Corps Sgt. Philip Jones, a bugler assigned to the Drum and Bugle Corps, performs during a ceremony at Marine… https://www.rawpixel.com/image/8742302/photo-image-public-domain-personFree Image from public domain licenseA U.S. Air Force HC-130 Hercules, with the 39th Rescue Squadron, Patrick Air Force Base, Cocoa Beach, Fla. flies over the… https://www.rawpixel.com/image/3318594/free-photo-image-aircraft-airplane-angel-thunderFree Image from public domain license3rd ASOS special warfare Airmen conduct unsupported, sustained cold-weather training during Operation Agipen 2: Part IIU.S.… https://www.rawpixel.com/image/11071564/photo-image-person-light-crossFree Image from public domain licenseA U.S. Customs and Border Protection Air and Marine Operations UH-60 Black Hawk helicopter conducts a flyover of State Farm… https://www.rawpixel.com/image/11072942/photo-image-border-sky-airplaneFree Image from public domain licenseAn Airman assigned to the 56th Security Forces Squadron guards an entryway during an active shooter exercise at Luke Air… https://www.rawpixel.com/image/8741515/photo-image-public-domain-personFree Image from public domain licenseU.S. Navy, HN Grady Seibert with 2nd Battalion, 7th Marine Regiment, 1st Marine Division, posts security during a Heavy Huey… https://www.rawpixel.com/image/8739556/photo-image-public-domain-personFree Image from public domain licenseU.S. Marines with Marine Fighter Attack Squadron 121 (VMFA-121), 3rd Marine Aircraft Wing, conduct the first ever hot load… https://www.rawpixel.com/image/8728230/photo-image-airplane-public-domain-lightningFree Image from public domain licenseU.S. Marines with 3rd Battalion, 3rd Marine Regiment, 3rd Marine Division, 3rd Marine Expeditionary Force conduct fast rope… https://www.rawpixel.com/image/8739553/photo-image-public-domain-personFree Image from public domain licenseU.S. Marine Corps Lance Cpl. Manning William with 2nd Battalion, 7th Marine Regiment, 1st Marine Division, provides security… https://www.rawpixel.com/image/8739520/photo-image-public-domain-people-gunFree Image from public domain licenseU.S. Marines with 2nd Battalion, 3rd Marine Regiment, 3rd Marine Division prepare to medically evacuate a simulated casualty… https://www.rawpixel.com/image/8739204/photo-image-fire-public-domain-personFree Image from public domain licenseU.S. Marines with 2nd Battalion, 7th Marine Regiment, 1st Marine Division, 1st Marine Expeditionary Force set up perimeter… https://www.rawpixel.com/image/8739586/photo-image-public-domain-person-gunFree Image from public domain licenseU.S. Air Force pararescuemen with the 58th Rescue Squadron signal in a HH-60 Pave Hawk helicopter assigned to the 66th… https://www.rawpixel.com/image/8728423/photo-image-public-domain-person-thunderFree Image from public domain licenseMore Oklahomans reach Calif. via the cotton fields of Ariz. ; "We got blowed out in Oklahoma." Share-croppers family near… https://www.rawpixel.com/image/12242382/photo-image-person-public-domain-childrenFree Image from public domain licenseU.S. Marine Corps 1st Lt. Robert Winter assigned to Marine Wing Support Squadron 374 (MWSS-374), combat engineer, clears an… https://www.rawpixel.com/image/8739430/photo-image-public-domain-personFree Image from public domain licenseU.S. Marines with India Battery, 11th Marine Regiment, 1st Marine Division, conduct a live fire exercise as part of Weapons… https://www.rawpixel.com/image/8739404/photo-image-public-domain-peopleFree Image from public domain licenseParker Dam power project, Ariz. and Calif. View of Parker Dam from the California side. Sourced from the Library of Congress. https://www.rawpixel.com/image/12335082/image-cloud-sky-waterFree Image from public domain licenseOn June 17, 2020, Tucson Sector Border Patrol Agents conduct operations at the Highway 86 checkpoint near Tucson, Ariz. U.S.… https://www.rawpixel.com/image/8726293/photo-image-public-domain-personFree Image from public domain licenseThis week's Rock Solid Warrior is Senior Airman Victor Granger, a 386th Expeditionary Civil Engineering Squadron pavements… https://www.rawpixel.com/image/8739461/photo-image-public-domain-personFree Image from public domain licenseA Team Luke triathlon participant rides her bike during the Luke Triathlon held at Luke Air Force Base, Ariz., Aug. 19, 2017. https://www.rawpixel.com/image/8741594/photo-image-public-domain-personFree Image from public domain licenseOn June 17, 2020, Tucson Sector Border Patrol Agents conduct operations at the Highway 86 checkpoint near Tucson, Ariz. U.S.… https://www.rawpixel.com/image/8742234/photo-image-public-domain-personFree Image from public domain licenseU.S. Marines assigned to the Silent Drill Platoon practice a drill sequence in preparation for a performance at Marine Corps… https://www.rawpixel.com/image/8742327/photo-image-public-domain-personFree Image from public domain license3rd ASOS special warfare Airmen conduct unsupported, sustained cold-weather training during Operation Agipen 2: Part IIU.S.… https://www.rawpixel.com/image/11071583/photo-image-face-person-skyFree Image from public domain licenseBaling alfalfa in the Salt River Valley near Chandler, Ariz. by Underwood and Underwood https://www.rawpixel.com/image/14299664/image-person-public-domain-natureFree Image from public domain licenseA U.S. Marine Corps UH-1Y Venom provides urban close air support at Yodaville, Yuma, Ariz., on Oct. 2, 2015. https://www.rawpixel.com/image/8728310/photo-image-public-domain-bird-natureFree Image from public domain licenseU.S. Air Force Airman 1st Class Keon Oliver, 355th Aircraft Maintenance Squadron weapons load crew member, hoses down an A… https://www.rawpixel.com/image/8741465/photo-image-public-domain-person-natureFree Image from public domain licenseThe Tora! Tora! Tora! performance team conduct a reenactment of the attack on Pearl Harbor during the 2019 Yuma Airhow… https://www.rawpixel.com/image/8727892/photo-image-airplane-public-domain-birdFree Image from public domain licenseU.S. Marines with 2nd Battalion, 3rd Marine Regiment, 3rd Marine Division conduct a fast rope exercise out of a CH-53E Super… https://www.rawpixel.com/image/8727795/photo-image-public-domain-person-birdFree Image from public domain licenseU.S. Marines with 2nd Air Delivery Platoon, 2nd Marine Logistics Group, in support of Weapons and Tactics Instructor Course… https://www.rawpixel.com/image/8728387/photo-image-public-domain-person-manFree Image from public domain licenseU.S. Marine Corps Lance Cpl. Eduardo Gomez with 2nd Battalion, 7th Marine Regiment, 1st Marine Division, provides security… https://www.rawpixel.com/image/8728377/photo-image-public-domain-person-gunFree Image from public domain license