 After serving with a Bavarian regiment, the Royal Bavarian Infantry Lifeguards Regiment, in the last year of World War I, Anton returned from the front an angry and disillusioned German nationalist.He was an Austrian citizen by birth who later had adopted Germany as his home and he enrolled at Munich University.As a German nationalist and an aristocrat, a monarchist and a proclaimed anti-Semite despite his mother's Jewish descent, Anton detested Eisner, the Jewish leader of the Bavarian Independent Social Democratic Party of Germany and prime minister of the People's State of Bavaria.