British Army Lt. Gen. Nick P. Carter, deputy commander of Headquarters International Security Assistance Force and United Kingdom National Contingent commander, is greeted by U.S. Army Col. J.P. McGee, 1st Brigade Combat Team commander, 101st Airborne Division, during a battlefield circulation on Jalalabad Airfield, Nangarhar province, Afghanistan, May 1, 2013. Lt. Gen. Carter visits Jalalabad Airfield to discuss Afghan National Security Force development. (U.S. Army photo by Spc. Vang Seng Thao/Released)