In the first post-war years, the performance and role model of the Schulze-Boysen/Harnack group were unreservedly recognized as an important part of the German resistance against the Nazis. In his book "Offiziere gegen Hitler" (Officers against Hitler) (1946) on the assassination attempt of 20 July 1944 plot, resistance fighter and later writer Fabian von Schlabrendorff paid tribute to the Germans executed as members of the Red Orchestra.