Kelly Discusses Southern Command's Efforts To Stem Drug Flow Marine Corps Gen. John F. Kelly, commander of U.S. Southern Command, discusses the latest developments in his command's efforts to stem the flow of drugs from South and Central America while briefing reporters at the Pentagon, March 13, 2014. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 936412-A-RVS82-138.jpg Photo Gallery