Billed as mainly about transition from Afghanistan, the two day NATO summit in Chicago has been subject to mass protests by vets and others, with a lot of reports of police violence against demonstrators. http://www.nato.int/cps/en/natolive/events_84074.htm
On the first day, the highly destabilising European Missile Shield was declared operational.
I don't think NATO gets this kind of a circus together just to discuss the supposed wind-down in Afghanistan.
Rising tensions in Europe, the potential for the break up of the Eurozone and the Arab Spring, etc. etc. will, I'm sure, have been discussed too.