Lieutenant General Sir Henry Royds Pownall, (19 November 1887 – 10 June 1961) was a senior British Army officer who held several important command and staff appointments during the Second World War. In particular, he was chief of staff to the British Expeditionary Force (BEF) in France and Belgium until the fall of France in May 1940. He was later chief of staff to General Archibald Wavell until the Battle of Singapore in 1942, and chief of staff to Lord Louis Mountbatten in 1943–44. Early career Pownall was born on 19 November 1887 and received his education at Rugby School and Royal Military Academy, Woolwich. After graduating he began his military service with the Royal Field Artillery and Royal Horse Artillery, during which he was stationed in both Britain and India 1906–1914. In 1909 he was promoted to lieutenant, and then captain in 1914. First World War During the First World War, Pownall served in both France and Belgium. He was promoted to major in 1917 and oversaw the Royal Artillery, 17th Division. For his service during the war Pownall was awarded the Distinguished Service Order in 1918. Interbellum Following the war, Pownall attended the Staff College, Camberley from 1920 to 1921, and then served as a brigade major at the School of Artillery in Larkhill from 1924 to 1925. He continued his training and education as General Staff Officer (Grade 2) at the Staff College, Camberley from 1926 to 1929 where he became a brevet lieutenant colonel in 1928. After completing his training at Staff College he took part in Great Game operations in the North West Frontier of India through 1931. He attended the Imperial Defence College in 1932, and, following this, he held a series of staff appointments, serving as the Military Assistant Secretary for the Committee of Imperial Defence from 1933 to 1935, then as Deputy Secretary for the Committee of Imperial Defence in 1936. From 1936 to 1938, he was Commandant of the Royal School of Artillery. As the threat of war grew, he was Director of Military Operations and Intelligence in the War Office from 1938 to 1939. Second World War Britain entered the war after Germany invaded Poland on 1 September 1939. Pownall held a series of command and senior staff positions throughout the war. He was appointed Chief of General Staff for the British Expeditionary Force (BEF) in France and Belgium until