U.S. Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, speaks with Colombian Army Gen. Juan Pablo Rodriguez Barragán, commander of Military Forces, as they walk through a corridor at the Pentagon, Sept. 25, 2014. U.S. Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, speaks with Colombian Army Gen. Juan Pablo Rodriguez Barragán, commander of Military Forces, as they walk through a corridor at the Pentagon, Sept. 25, 2014. SHARE: Download: Full Size (1.16 MB) Tags: photo essays Credit: VIRIN: 592602-P-FDE35-602.jpg Photo Gallery