Keywords: US Navy 051021-N-4374S-002 The guided missile frigate USS Samuel B. Roberts (FFG 58) transits trough the waters of Rio de Janeiro, Brazil, during UNITAS 47-06.jpg en Rio De Janeiro Brazil Oct 21 2005 - The guided missile frigate USS Samuel B Roberts FFG 58 transits trough the waters of Rio de Janeiro Brazil during UNITAS 47-06 Atlantic Phase Naval forces from Argentina Brazil Spain Uruguay and the United States are participating in UNITAS 47-06 Atlantic phase This is a U S Southern Command-sponsored exercise that enhances friendly mutual cooperation and understanding between participating navies by enhancing interoperability in naval operations among the nations of the Western Hemisphere U S Navy photo by Photographer s Mate 2nd Class Michael Sandberg RELEASED 2005-10-21 051021-N-4374S-002 Navy http //www navy mil/view_image asp id 29337 U S Navy photo by Photographer s Mate 2nd Class Michael Sandberg PD-USGov-Military-Navy United States Navy images from Rio de Janeiro Brazil USS Samuel B Roberts FFG-58 Rio-NiterĂ³i Bridge |