President made a surprise visit to Afghanistan on Friday to deliver a holiday greeting. Read more and watch the video after the jump.

President Barack Obama made a surprise visit to Afghanistan on Friday, personally delivering holiday greetings to U.S. troops stationed there and promising continued full support in the war against Taliban and other extremists.

The president, who is expected to remain on the ground for roughly three hours, addressed nearly 3,900 troops at Bagram Airfield. Most of the troops were with the Army's 101st Airborne Division, though components of all the service branches were represented.