The Young Men’s Christian Association (YMCA) is best known for its athletic and youth programs, a heritage that draws on its origins in 1844 to provide wholesome recreation to urban youth away from the moral decay of industrialized urban living. Before long, that uplift mission found a place in the American Civil War, and soon the Y had spread all over the world by the early twentieth century, and in every major war thereafter as well. The YMCA at War: Collaboration and Conflict during the...