TheCodeBreakers
Germany's armed forces had their own agencies for cryptanalytic
intelligence.
Of these there were four: one in the Oberkommando der Wehrmacht
for the armed forces as a whole, and one each for the high commands of
the Army (O.K.H., or Oberkommando des Heeres), the Navy (O.K.M., or
Oberkommando der Kriegsmarine), and the Air Force (O.K.L., or
Oberkommando der Luftwaffe). All but the naval unit traced back to an
intercept service established in the Army in
1919 by First Lieutenant Erich Buschenhagen, who had worked in
radio intelligence in the war. He called it the "Volunteer Evaluation
Office."
This unit stepped up its activities as Allied post-Versailles supervision
waned in the 1920s. Part of its work consisted of picking up press
association messages and news broadcasts and distributing a digest of
them to government officials. By 1926, it had intercept stations in six
major cities of Germany. In 1928, it began following the military
annaabi.ee 
