Obama's Nobel Speech and Just War theory

Matthew Gabriele at Virginia Tech, who knows a thing or two about Crusading ideology, has a great analysis of Obama's Nobel Prize acceptance speech:

It's a fascinating speech in many ways. Agree or disagree on its merits, it's a learned speech -- one that understands its subject and that subject's history. All in all, it's a speech that some might say is positively medieval. I don't throw that term around lightly.

President Obama: just another post-WWII president, late antique Roman bishop, or the new Pope Urban II? If those were the choices, which would you opt for?