I find it ironic that the leader of a country which is engaged in the largest 2 ongoing armed conflicts in the world has been given this prize.
While I don't know if he deserves it, probably doesn't, but who were the other lead candidates? Though to correct you, he didn't start the wars. He inherited them. One of which is a NATO mission, not an American war.
So far, he has only extended the deadline fow withdrawing from Iraq, and is thinking about sending more troops in Afghanistan.
He wants to pull more troops out of Iraq, and relocate/put a smaller amount in Afghanistan. It's funny because people think Iraq and Afghanistan are similar wars.
Afghanistan is a NATO
mission which means countries from NATO also have troops there. They do not have troops in Iraq unless they are also part of the coalition of the willing. Obama pulling troops out of Iraq and putting them in Afghanistan eases the burden on NATO countries. Not entirely sure why the rest of the world would complain about that.
But as far as "his extraordinary efforts to strengthen international diplomacy and cooperation between peoples." goes, which is why he won according the the article,
He did negotiate with Iran to get hostages released (as opposed to bombing them), sent Bubba Clinton to NK for the same reason and isn't ignoring China and Japan like Bush did. The first place he sent his secretary of state (hillary) back in Feb, was Japan and the rest of Asia. He also did away with the big stick foreign policy that Bush held. Are they great accomplishments in comparison to bush? Yes. Are the competitive for the Nobel Peace prize? I don't know. I don't know the competition.