As a result of these views, the majority of the German Army worked enthusiastically with the SS in murdering Jews in the Soviet Union. 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. 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".