Sgt. Abel Dominguez, a diver for the Panamanian national

Sgt. Abel Dominguez, a diver for the Panamanian national air naval service, practices with an underwater cutting tool during a PANAMAX 2011 welding exercise with Mobile Diving and Salvage Unit 2. 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.