Funny thing is that the Democrats appear to have to clean up after the Republicans who get them into these wars (Eisenhower --> Kennedy/Johnson) (W. Bush --> Obama), or get involved because they really have no choice. (Wilson, FDR).
That said, If you're inheriting a war, the quickest way to end it would be by going with mass deployment. Otherwise it'll turn into a 10 year plan.
As for Obama's peace price, he appeared to be pretty surprised himself, as well. I guess he's getting it on intentions and recent diplomatic actions. I mean, you have to admit that he's been pretty active in that department already. Maybe it has a little to do with that US' international standings as well. You've surely become more popular around the world.