OPERATING BASE SHANK U.S. Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, prepares to eat lunch with soldiers on Forward Operating Base Shank, Afghanistan, Feb. 10, 2012. The soldiers are assigned to the 1st Armored Division's 3rd Brigade Combat Team, Task Force Bulldog. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 829065-I-NRX82-413.jpg Photo Gallery