Well, bomb North Korea then, they deserve it too.
Besides, Serbia was bombed quite a while _after_ the mess started around 1991, again the US waiting till "teh evil ones" are all drained out and dropping a few bombs proclaiming how they "got teh victoly!", saving the poor people from Milosevic's regime-o-terror. Never mind the genocide happening the years before without anyone moving a finger.
Oh, wait, there is no oil in Serbia, my mistake.