"Published here for the first time are two hitherto classified studies of German military intelligence in World War II. One was done by American intelligence and the other by an Allied team. Both were completed shortly after the war in Europe ended. The first is "The German G-2 Service in the Russian Campaign (Ic-Dienst Ost)," otherwise identified as the First Special Intelligence Interrogations Report; it was produced in July 1945 by G-2 of the United States Forces, European Theater (USFET). The second is "German Operational Intelligence"; it was produced in April 1946 at the German Military Documents Section of the American G-2 by a combined British, Canadian, and American staff. Now declassified, these documents constitute a consise, contemporary, and objective analysis of an enemy's military intelligence service a the operational level. The second section of this book, "German Operational Intelligence," contains many charts."--Editor's note.