A Mexican BO-105 Bolkow helicopter fires 2.75 inch high-explosive rockets at the ex-USS Connolly during the sinking exercise portion of UNITAS Gold. This year marks the 50th iteration of UNITAS, a multinational exercise that provides opportunities for participating nations to increase their collective ability counter illicit maritime activities that threaten regional stability. Participating countries are Brazil, Canada, Chile, Colombia, Ecuador, Germany, Mexico, Peru, U.S. and Uruguay.