The British historian Richard J. Evans wrote that junior officers tended to be especially zealous National Socialists with a third of them being Nazi Party members in 1941.[1] The Wehrmacht did not just obey Hitler's criminal orders for Barbarossa because of obedience, but rather because they shared Hitler's belief that the Soviet Union was run by Jews, and that it was necessary for Germany to completely destroy "Judeo-Bolshevism".[2] Jürgen Förster wrote that the majority of Wehrmacht officers sincerely believed that most Red Army commissars were Jews, and that the best way to defeat the Soviet Union was to kill all of the commissars so as to deprive the Russian soldiers of their Jewish leaders.[3]