Remember those polls you used to see occasionally back in the Dubya days where people outside the USA were saying that America was a greater threat to world peace than Iran or North Korea and any other bunch of crazy saber rattlers? OK, now do you understand why Obama won the Nobel Peace Prize?
So no, he hasn’t achieved a lot internationally since he got elected. But he got elected.
Of course you are still welcome to believe that giving someone the Nobel Peace Prize for saving the world from Sarah Palin is jumping the shark, but now at least you can stop asking WHY???