 Struthers volunteered and was a captain in the Royal Army Medical Corps.He arrived in Noyelles-sur-mer, France, in July and started by running a gonorrhea and syphilis ward, helping at a hut with patients in serious condition, and monitoring the sanitation of a hospital.He also ran a hospital for the Chinese Labor Corps, and he worked in the Noyelles-sur-Mer hospital’s convalescent camp in the Crecy Forest as part of the Canada Army Medical Corps.