 They believe that he would not have dared to oppose both his father and Bismarck to change Germany's course; a natural soldier, he was steeped in his family's strong military tradition, and had happily reported to his father since he joined the army at the age of ten.Andreas Dorpalen notes that Frederick had complied with most of William's and Bismarck's policies early in his life, and would have been unlikely to change his behaviour.According to Arthur Rosenberg, despite his liberal tendencies Frederick still firmly believed in Bismarck and his system, with Dorpalen adding that in any case Frederick had too weak and ineffectual a character to have brought about real change, regardless of how long he reigned.