League of Germany  ( Kommunistischen Jugendverband Deutschlands ) KJVD. [1]  In early 1934, he was  sentenced  to three years in  prison  for spreading  anti-fascist   union  publications. When the sentence was completed in 1937, he was sent to  Dachau concentration camp  and then imprisoned at  Buchenwald  in 1938. At Buchenwald, he