Military members from several nations swim to the beach from a rigid hull inflatable boat, navigated by U.S. sailors from Special Boat Team 20, during an ocean insertion exercise during PANAMAX 2011. PANAMAX is an annual multinational training exercise sponsored by U.S. Southern Command focusing on the security of the Panama Canal. The 12-day exercise involves 16 nations and more than 3,500 civil and military personnel across the Western Hemisphere. (Photo by: Petty Officer 1st Class Elisandro T. Diaz)