The document actually is a telegram sent by the Generalfeldmarschall (who achieved this lofty rank in June 1915) to Archduke Friedrich, Duke of Teschen (1856-1936), the Austro-Hungarian Army???s Supreme Commander during WW I. [A Historical Footnote: the Archduke was supported in his office by a Count Franz Conrad von H???tzendorf (1852-1925), who served as the Austrian General Staff???s Chief.