After returning back to the UK from Gallipoli, Brian became an officer in the Grenadier Guards, and went to the Western Front in France in September 1918
In October 1918 he was awarded the Military Cross, “ for showing the greatest initiative and coolness” when his platoon came under heavy machine gun fire.
Brian was killed in action, leading his platoon, on November 4 1918. The First World War ended 7 days later.
Brian was probably the youngest commissioned officer in the Brigade of Guards, to be killed in action in World War 1. He is buried in a small military cemetery in Wargnies-la-Petite, together with five other guardsmen.