In 1918, Billy Mitchell led a multi-national force with 1,481 airplanes at St. Mihiel, resulting in German defeat and recovery of St. Mihiel by the Allies for the first time since 1914. This Salmson 2A2 of the 91st Aero Squadron had its lower wing heavily damaged by enemy anti-aircraft fire, September 14, 1918.

Credits - U.S. Air Force Museum