Battles; Diaries; Armed Forces; World War, 1914-1918; Argonne, Battle of the, France, 1918; Saint-Mihiel, Battle of, Saint-Mihiel, France, 1918; World War, 1914-1918; Medical care; World War, 1914-1918; Transportation; War horses; World War, 1914-1918; Hospitals; Gas masks; Mustard gas; Soldiers; Billeting; World War, 1914-1918; Censorship; World War, 1914-1918; War Work; Red Cross; Armistice Day; World War, 1914-1918; War Work; Y.M.C.A.