In March 1937, Alexander was appointed as one of the aides-de-camp to the recently acceded King George VI and in May returned to the United Kingdom to take part in this capacity in the state procession through London during the King's coronation. Alexander would have been seen in this event by two of his Canadian viceregal successors: Vincent Massey, who was then the Canadian high commissioner to the United Kingdom, and Massey's secretary, Georges Vanier, who watched the procession from the roof of Canada House on Trafalgar Square. Following the coronation celebration, Alexander returned to India, where he was made the honorary colonel of the 3rd Battalion, 2nd Punjab Regiment, and then in October 1937 was promoted to the rank of major-general, making Alexander the youngest general in the British Army. He relinquished command of his brigade in January 1938, and in February returned to the United Kingdom to take command of the 1st Infantry Division. In June 1938 he was appointed a Companion of the Order of the Bath.