Then everyone is happy. Except the women of Afghanistan of course.
Here is a great STRATFOR summary of the 30-year war in Afghanistan. One of the primary points of the article is that we have never actually fought it like a war. We never have had enough forces on the ground to really make a difference.
America's wars of the last 50 years have been fought primarily with aerial bombing. It never really works, because the enemy decentralizes to suburban areas and the countryside where even precision bombing is not effective -- unless you bomb every single house, recreational vehicle, and tent.
Despite our technology, wars still cannot be won without large numbers of troops on the ground. We have not done that since World War II -- not even in Iraq. And so we get wars that go on and on and on.
After full victory, an occupation is required. Without a full occupation, the victory is again lost. We have not done that recently either. Note that occupation troops are not the same group as the fighting troops. As Jerry Pournelle said recently:
Our military leadership is starting to understand this again. None of our Presidents since FDR have understood it -- including Mr. Obama. (Actually Mr. Obama understands very little of anything. Except he received lots of early mentoring in the destruction of capitalism, which he is now busily putting into practice.)
Of course what this means is that you don't go to war lightly. It is a huge commitment.
And Iran would be very quiet right now.
But I guess we are "Beyond War" -- which I think is the same thing as Defeat.