Woodrow Wilson actually said...
I want to say to you very solemnly that, notwithstanding the splendid achievement of our soldiers on the other side of the sea, who I do not hesitate to say saved the world, notwithstanding the noble things that they did, their task is only half done and it remains for us to complete it.
Context
Address at the Opera House (Marlow Theater) in Helena, Montana
09/10/1919