the 3rd Canadian Division, and, after being promoted again, this time to the brevet rank of major, on 26 February 1917, he won the Military Cross (MC) in 1917, although he was slightly wounded in the process. The following year, he was given command of the 7th Battalion, Canadian Engineers. He was awarded the Distinguished Service Order (DSO) during the Battle of Amiens for bridging a river whilst under enemy fire on 8 August 1918−the so-called "Black Day of the German Army". He was promoted to the acting rank of lieutenant-colonel a week later. The Armistice with Germany on 11 November brought the war to an end soon afterwards. Despite having had a relatively good war, it had left its mark upon him, with his brother having been killed in action and, although Stuart searched for four days, his brother's body was never recovered. Between the wars Stuart was to remain in the army during the interwar period, returning to Canada soon after the armistice. His service was typical for an officer of that time period, moving to and from several military districts, initially as Temporary Senior Engineer Officer with the 13th Military District in Calgary, Alberta, a post he held from May 1919 until May 1920. After this he was then sent to the 5th Military District in his native Quebec, to serve as a District Engineer Officer, a position he held for well over five years, from June 1920 to November 1925. His service at home was then interrupted when Stuart went to England where he attended the Staff College, Camberley from 1926 to 1927. After graduation from Camberley Stuart once again returned to Canada, where he was made a District Engineer Officer, this time with the 11th Military District in Victoria, British Columbia. Stuart's service there brought him into contact with a man who was to play a significant part in his life and his later military career, Andrew McNaughton, who was then the 11th Military District's District Officer Commanding (DOC). McNaughton soon became the Chief of the General Staff (CGS), the head of the Canadian Army. The two men and their families grew close over the next few years, especially when McNaughton became CGS. Stuart's mother, a widow who lived with the Stuarts for 18 years, grew close to McNaughton and his family, who had no grandmother, and "Andy" in particular. She would alternate Christmases in