Archibald Montgomery-Massingberd

Field Marshal Sir Archibald Armar Montgomery-Massingberd, (6 December 1871 – 13 October 1947), known as Archibald Armar Montgomery until October 1926, was a senior British Army officer who served as Chief of the Imperial General Staff (CIGS) from 1933 to 1936. He served in the Second Boer War and in the First World War, and later was the driving force behind the formation of a permanent "Mobile Division", the fore-runner of the 1st Armoured Division. Provided by Wikipedia