Going into Afghanistan was a disaster that will inevitably do far more harm than good. Afghanistan is not even a proper country as we know it, but a group of various tribal people. There was never any way of bringing peace to the country, especially by invading it and assuming some form of democracy would instantly cure all, or any, woes.
Same thing with Iraq.
You can expect civil war in one, if not both those countries, by the end of this decade. It's practically already happening in Iraq.
Meanwhile, the US adds another country to the countless countries it's moronically tried to impose it's will on, and in turn, another country and its people fosters hatred and vengeance against the invaders.
There isn't a more disastrous foreign policy in our modern era.
But I'm glad to see Obama has figured it out by blowing up children in Yemen and Pakistan and helping prolong, possibly even enter, the civil war in Syria.
I guess when the war machine is this big it needs to be fed.