 After the end of World War I and the dissolution of the German Empire, von Epp was a commanding officer in the "Freikorps" and the "Reichswehr".He was a member of Bavarian People's Party, before joining the Nazi Party in 1928, when he was elected as a member of the German parliament or "Reichstag", a position he held until the fall of Nazi Germany.He was the "Reichskommissar", later "Reichsstatthalter", for Bavaria.