In 1916, the American Red Cross prepared for US possible involvement in the war by organizing base hospitals. The Red Cross identified several major medical centers or hospitals to organize these units. The idea was that the doctors and nurses would already work well together. Each medical center or hospital supplied the personnel, equipment, and supplies for their unit. Twenty two doctors, 2 dentists, 65 Red Cross nurses, 22 nurses’ aides, 153 enlisted men, 6 civilians, and chaplain staffed each base hospital for a two-year service.