Armed Forces; World War, 1914-1918; Champagne, Battles of, France, 1914-1917; Chateau-Thierry, Battle of, Chateau-Thierry, France, 1918; Saint-Mihiel, Battle of, Saint-Mihiel, France, 1918; World War, 1914-1918; Campaigns; Meuse River Valley; Travel; Battles; Telephone operators