COMMAND BRIEF U.S. Army Maj. Gen. Daniel B. Allyn, the commander of Afghanistan Regional Command East, briefs Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, before exiting a C-130 and touring Forward Operating Base Shank, Afghanistan, Feb. 10, 2012. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 284796-Z-HHO36-999.jpg Photo Gallery