Robert entered the war in France on 25th August 1914 with No 11 General Hospital. On 12th August 1918 he was serving with the 141st Field Ambulance, when he was wounded, suffering a 'GSW' (shell) to his scalp. The wound was slight and he remained on duty. On 4th May 1919 he proceeded to the Concentration Camp for dispersal, and was struck off the strength of the unit.