The Children's Crusade

The book Slaughterhouse Five has two names, the second of which being The Children's Crusade. This is shown on the second physical page of the book. I think the second title makes a lot more sense than the first, because I think it can be interpreted in many different ways. The most obvious way I can think of is that World War Two was a child's crusade in many ways. It was fought by many young people, and a lot of them ended up dying. The only actual reference to the Children's Crusade in the book that I can remember is when the colonel on page 106 says "My God, my God… it's the Children's Crusade," after seeing the youth of his soldiers. Do you guys think there are any other deeper meanings behind the title? Why did Vonnegut have multiple titles for the book?