Sommaire des archives extrait de  Records of the Army Air Forces [AAF] (Record Group 18) 1903-64 (bulk 1917-47) 18.1 ADMINISTRATIVE HISTORY 18.2 GENERAL RECORDS OF THE OFFICE OF THE CHIEF SIGNAL OFFICER 1914-18 18.2.1 General records 18.2.2 Records … Lire la suite de WW1: United States Army Air Service in France (1918)