Revised as of January 26, 1920, this list is, perhaps, still incomplete, due to reports of several of the Allied Governments not having been received to date. Errors and omissions discovered should be reported by letter, with full information to the Director of Air Service. All members of the United States Air Service, American Expeditionary Force, whether flying or non-flying, decorated for services in the World War have been included. The decorations are arranged under the individual countries in order of grade. Ranks given are as of the date of the decoration.