U.S. Navy Capt. Ace Van Wagoner, center left, the commander

U.S. Navy Capt. Ace Van Wagoner, center left, the commander of Destroyer Squadron 40 and the U.S. mission commander of Unitas Pacific, addresses naval leaders from Chile, Colombia, Ecuador, Mexico and Peru during the opening ceremony for Unitas PAC at the Peruvian naval base in Callao, Peru, May 14, 2012. Unitas, Latin for "unity," is an annual U.S. Southern Command-sponsored, multinational naval exercise designed to enhance security cooperation and improve coalition operations between South American and U.S. maritime forces. (U.S. Navy photo by Mass Communication Specialist 2nd Class Stuart Phillips)