Lieutenant General Sir Hugh Jamieson Elles (27 May 1880 – 11 July 1945) was a British officer and the first commander of the newly formed Tank Corps during the First World War. Early life Born in British India on 27 May 1880, Hugh Jamieson Elles was the younger son of Sir Edmond Alles. Returning to England, he was educated at Clifton College, and the Royal Military Academy, Woolwich, after which he was commissioned as a second lieutenant into the Royal Engineers in June 1899. He served in South Africa during the latter part of the Second Boer War and then undertook regimental duty in Aldershot. In 1913 he attended the Staff College, Camberley. World War I On the outbreak of World War I in August 1914, he was posted to the staff of the 4th Division and departed for France soon afterwards. He served at Le Cateau, then took part in the Retreat to the Seine and the battle of the Aisne, where the German Army was halted. He then moved north with the British Expeditionary Force (BEF) to Flanders, taking part in the Battle of Armentières in October 1914. In February 1915, he was promoted to brevet major and served as the brigade major of the 10th Brigade. He was wounded during the brigades' counterattack, on 25 April 1915, during the Second Battle of Ypres. In August 1915, after recovering from his injuries, Elles was one of three officers specially selected by General Sir William Robertson, soon to be Chief of the Imperial General Staff (CIGS), the professional head of the British Army, to liaise with troops at the front and pass the information directly to the British General Headquarters (GHQ). In January 1916, as a General Staff Officer (GSO), Elles was sent by General Sir Douglas Haig, the Commander-in-Chief (C-in-C) of the BEF on the Western Front, to investigate the first tanks or "caterpillars" being built in England. He attended the first trials of "Mother" and reported back to Haig on its success. During the summer of 1916, he was tasked to report back from the Somme, where the tanks were first used. Promoted to the temporary rank of colonel, Elles was appointed to head the Heavy Branch (the first tank units) of the Machine Gun Corps in France on 29 September 1916. Having seen the tanks achieve little success during the Battle of Passchendaele because of the