In 1986, the German historian Hans Mommsen wrote about the role of the Wehrmacht under National Socialism:The leadership of the Wehrmacht rather willingly made themselves into accomplices in the policy of extermination. It did this by generating the "criminal orders" and implementing them. By no means did they merely passively support the implementation of their concept, although there was a certain reluctance for reasons of military discipline and a few isolated protests. To construct a "causal nexus" over all this amounts in fact to steering away from the decisive responsibility of the military leadership and the bureaucratic elites.