Daniel entered the war in France on 11th August 1915. On 13th August 1918 he was admitted 'sick' in to the hospital of the 2nd Field Ambulance. He rejoined the unit for duty on discharge from the hospital of the 2nd Field Ambulance on the 20th August 1918. On 4th June 1919 he proceeded to No 1 Concentration Camp, Cologne for dispersal and was struck off the strength of the unit.