U.S. Air Force reservist assigned to the 919th Special Operations Civil Engineer Squadron firefighters battle a huge blaze… https://www.rawpixel.com/image/3315520/free-photo-image-army-cc0-ceaseFree Image from public domain licenseConvent of the Great St. Bernard, Switzerland/Italy. Coloured etching. https://www.rawpixel.com/image/13967811/convent-the-great-st-bernard-switzerlanditaly-coloured-etchingFree Image from public domain licenseA girl feeds a young boy at an Iraqi Federal Police patrol base after their rescue from ISIS-held territory in Mosul, Iraq… https://www.rawpixel.com/image/8741328/photo-image-public-domain-person-foodFree Image from public domain licenseIn darkest Africa, or, The Quest, rescue, and retreat of Emin, governor of Equatoria / by Henry M. Stanley. https://www.rawpixel.com/image/14021173/image-cartoon-person-artFree Image from public domain licenseIn darkest Africa, or, The Quest, rescue, and retreat of Emin, governor of Equatoria / by Henry M. Stanley. https://www.rawpixel.com/image/13983420/image-plant-person-treeFree Image from public domain licenseIn darkest Africa, or, The Quest, rescue, and retreat of Emin, governor of Equatoria / by Henry M. Stanley. https://www.rawpixel.com/image/13979288/image-plant-person-treeFree Image from public domain license