President Barack Obama greets American troops after vowing to shake every hand in the room at Bagram Airfield in Bagram, Afghanistan, May 25, 2014. Obama made the surprise trip on Sunday for the first time since a visit in 2012 when he signed a strategic partnership agreement with the government there to bring the war to an end. (Doug Mills/The New York Times)
President Barack Obama greets American troops after vowing to shake every hand in the room at Bagram Airfield in Bagram, Afghanistan, May 25, 2014. Obama made the surprise trip on Sunday for the first time since a visit in 2012 when he signed a strategic partnership agreement with the government there to bring the war to an end. (Doug Mills/The New York Times) NYT
President Barack Obama greets American troops after vowing to shake every hand in the room at Bagram Airfield in Bagram, Afghanistan, May 25, 2014. Obama made the surprise trip on Sunday for the first time since a visit in 2012 when he signed a strategic partnership agreement with the government there to bring the war to an end. (Doug Mills/The New York Times) NYT

U.S. combat troops to exit Afghanistan, leave small force through 2016

May 27, 2014 6:18 PM