English: A U.S. Army nurse, wearing a helmet and fatigue uniform, prepares an intravenous injection; a kerosene lamp provides illumination. Hospital personnel worked under conditions similar to those they might encounter upon their arrival on the continent after the Normandy invasion. Army nurses gave widely varying types of skilled service, some of them in field hospitals and others in the general hospitals farther behind the lines. World War II was the first war in which nurses received full military benefits and real instead of relative officer rank. There were more than 17,000 Army nurses in the European Theater of Operations in May 1945.