Wikipedia
The Kampfbund ("Battle-league") was a league of patriotic fighting societies and the German National Socialist party in Bavaria, Germany, in the 1920s. It included Adolf Hitler's Nazi Party (NSDAP) and its Sturmabteilung (SA), the Oberland League and the Bund Reichskriegsflagge. Hitler was its political leader, while Hermann Kriebel led its militia.
The league was created on 30 September 1923 at Nuremberg, where Hitler joined other nationalist leaders to celebrate German Day, which marked the anniversary of the Prussian victory over France in 1870. The purpose was to consolidate and streamline their agendas and also prepare to take advantage of the split between Bavaria and the central government. The impetus of this consolidation was the ending of the clandestine Ruhr war by the Berlin central government which infuriated the freebooters and nationalists. The Kampfbund conducted the Beer Hall Putsch of November 1923 in Munich, Germany.