"Put fighting blood in your business list your employment needs with the U.S. Employment Service." Image consists of a group of Marines in the middle of a battle, one carrying the American flag and another carrying the Marine Corps flag. The upper left corner has an emblem with an eagle spreading its wings over it and printed on the emblem are the French cities of Cantigny, Chateau Thierry, St. Michel, Argonne, and Marne. Thomsen-Ellis Company, (191?), Artist, Arthur Woods. The most important volunteer group in America during WWI was the American Red Cross. During WWI more than eighteen thousand Red Cross nurses served with the Army and Navy Nurse Corps. Some of these nurses worked at American base hospitals, at field units, and aboard ships, whereas others, served at home combating the 1918 influenza epidemic and providing medical services to military camps, munitions plants, and shipyards. They also helped to recruit and train ambulance drivers and orderlies at various universities. By the time the war ended in November 1918, the Red Cross had become a major national humanitarian organization.