Woodrow Wilson? You can't be serious! The man who worked so hard for the Leage of Nations (UN's predecessor), who was a convinced Pacifist, tried to stay out of WW1 and ultimately tried to make it "the war to end all wars" through his fourteen points. The man was awarded the Nobel Peace Price in 1919 (okay, I admit the Nobel Peace Price was awarded to some people who could be seen as warmongers as well). Anyway, Woodrow Wilson is not the man.
You need to look several floors down in the hierarchy (it was no president who gave that order). I don't suppose you could guess the name of the man first. Try to find out which war I was refering to (not WW1) which will make it a lot easier to find the man.