Reuters reports that alliance leaders are now focused on the logistical challenge of planning the actual physical exit of NATO troops and supplies. They are currently trying to secure so-called "reverse transit" routes that will allow NATO supplies currently in Afghanistan to be moved through Uzbekistan and Pakistan on their way home.
NATO leaders on Monday will endorse a plan to relinquish combat command in Afghanistan by mid-2013. Most of the 130,000 troops in the country will be withdrawn by 2014.
Pakistan's president, Asif Ali Zardari, is attending the NATO summit in Chicago. The country has blocked transit of supplies since a U.S. drone attack killed 24 Pakistani soldiers last year.