Keywords: The US Air Force on the Western Front 1918-1919 Q72611.jpg The US Air Force on the Western Front 1918-1919<br/> Close-up of the pilot and observer in a Sopwith 1 1/2 Strutter American official photographer 1919-01-25 First World War http //media iwm org uk/iwm/mediaLib//332/media-332941/large jpg Q 72611 205165363 This image was created and released by the Imperial War Museum on the http //www iwm org uk/corporate/privacy-copyright/licence IWM Non Commercial Licence This photograph was taken by American military personnel in their official duties and is public domain under US law consequently the following licence applies in addition to any other claim PD-USGov-Mil American First World War Official Exchange Collection Associated people and organisations US AIR FORCE Associated themes US Air Force 1917-1918 Associated keywords Aerial Warfare Military Aviation photographs PD-USGov American First World War Official Exchange collection Images uploaded by Fæ |