An observer in the tail tip of the English airship R33 on March 6, 1919 in Selby, England. (Bibliotheque nationale de France)
World War I was the first major conflict to see widespread use of powered aircraft — invented barely more than a decade before the fighting began.
Airplanes, along with kites, tethered balloons, and zeppelins gave all major armies a new tactical platform to observe and attack enemy forces from above.
via vintage everyday.