File photo of US soldiers on patrol in the Turkham Nangarhar region of Afghanistan bordering Pakistan. NATO leaders in a May 21 summit in Chicago committed to pulling combat troops out of Afghanistan ... more 

File photo of US soldiers on patrol in the Turkham Nangarhar region of Afghanistan bordering Pakistan. NATO leaders in a May 21 summit in Chicago committed to pulling combat troops out of Afghanistan by the end of 2014 as Western nations grow tired of more than a decade of war and pessimistic on the chances of further progress less