Keywords: US Navy 090612-N-2821G-002 Rear Adm. Joseph D. Kernan, outgoing commander of U.S. Naval Forces Southern Command, U.S. 4th Fleet, arrives at the Naval Forces Southern Command, 4th Fleet change of command ceremony.jpg en MAYPORT Fla June 12 2009 Rear Adm Joseph D Kernan outgoing commander of U S Naval Forces Southern Command U S 4th Fleet arrives at the Naval Forces Southern Command 4th Fleet change of command ceremony at Naval Station Mayport Rear Adm Victor G Guillory relieved Kernan as Naval Forces Southern Command 4th Fleet Commander Naval Forces Southern Command 4th Fleet is responsible for U S Navy ships aircraft and submarines operating in the Caribbean Central and South America and the surrounding waters U S Navy photo by Mass Communication Specialist 2nd Class Alan Gragg/Released 2009-06-12 090612-N-2821G-002 Navy http //www navy mil/view_image asp id 72642 U S Navy photo by Mass Communication Specialist 2nd Class Alan Gragg PD-USGov-Military-Navy Naval Station Mayport Change of command Joseph D Kernan Victor G Guillory Salutes |