Keywords: US Navy 080712-N-3285B-049 Adm. James Stavridis, right, commander U.S. Southern Command, receives a saluted from Rear Adm. Joseph D. Kernan, center, after assuming command of U.S. Naval Forces Southern Command (NAVSO), U.S. 4th.jpg en MAYPORT Fla July 12 2008 Adm James Stavridis right commander U S Southern Command receives a saluted from Rear Adm Joseph D Kernan center after assuming command of U S Naval Forces Southern Command NAVSO U S 4th Fleet during a dual change of command and fleet reestablishment ceremony held on board Naval Station Mayport Kernan relieved Rear Adm James W Stevenson Jr pictured left who retired after 32 years of naval service Fourth Fleet is the reassigned numbered fleet assigned to NAVSO exercising operational control of assigned forces Fourth Fleet conducts the full spectrum of Maritime Security Operations in support of U S objectives and security cooperation activities that promote coalition building and deter aggression in the maritime environment U S Navy photo Navy photo by Mass Communication Specialist 2nd Class Regina L Brown Released 2008-07-12 080712-N-3285B-049 Navy http //www navy mil/view_image asp id 61257 U S Navy photo PD-USGov-Military-Navy Naval Station Mayport Change of command James Stavridis Joseph D Kernan Salutes |