Hermann Struts' Political Party

My character is named Hermann Struts. He is a soldier who fought bravely in the war, and he is bitter about the fact that he has not had a promotion in over ten years. He believes that if the Treaty of Versailles had not been signed, then he and Germany would have been better off. I think that he is also a very patriotic person, and thinks that what has been done to Germany is not right. The Nazi party offers everything he wants, so that's why I think he would want to be a Nazi.