Montgomery was appointed Chief of Staff of the British Army of the Rhine following the War and then Deputy Chief of the General Staff in India on 27 March 1920 before becoming General Officer Commanding 53rd (Welsh) Division on 3 March 1922. He became General Officer Commanding 1st Infantry Division at Aldershot on 4 June 1923 and, having been advanced to Knight Commander of the Order of the Bath in the New Year Honours 1925, he was promoted to lieutenant general on 16 March 1926. Following a two-year break on half-pay, he became General Officer Commanding Southern Command on 17 June 1928. Promoted to general on 1 October 1930, he was appointed Adjutant-General to the Forces on 1 March 1931 and made Aide-de-Camp General to the King on 3 March 1931.