STANDING WATCH A U.S. soldier provides security at the Khyber Border Coordination Center near Torkham Gate at the Afghanistan-Pakistan border in Nangarhar province, Afghanistan, Jan. 4, 2015. The soldier is assigned to the 3rd Cavalry Regiment, Train, Advise, Assist Command East security force. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 722940-S-YEA38-129.jpg Photo Gallery