ATLANTIC OCEAN - Crewmembers of the Coast Guard Cutter Thetis clean the 76mm Oto Melara gun after firing 54 rounds at the ex-USS Connolly during a sinking exercise for UNITAS Gold Wednesday April 29, 2009. UNITAS is a multi-national maritime training exercise conduct maritime training in a joint environment and encourage interoperability between the participating nations. Participants and observers from Argentina, Brazil, Chile, Colombia, Dominican Republic, Ecuador, Germany, Mexico, Peru, the United States and Uruguay are included in the exercise. UNITAS Gold runs from April 20 to May 5 off the coast of Jacksonville, Fla. USCG photo/ PA3 Cindy Beckert.