 Complete the following phrase:  Roberts, promoted to lieutet on 3 September 1914, along with his battalion, then commanded by Lieutet Colonel George Grogan, returned to the United Kingdom shortly after the declaration of war and arrived there in October 1914, where it became part of the 24th Brigade of the 8th Division, which was then in the process of formation. The battalion was sent to reinforce the British Expeditionary Force BEF on the Western Front and landed in France in November 1914. The battalion was involved in the winter operations 19141915 and participated in the Christmas truce. Three months after his arrival, Roberts was awarded the Distinguished Service Order while leading a trench raid. He was made his battalions adjutant and fought in the 