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190826-N-TH560-0124
HMAS STIRLING, Australia – A Collins-class guided missile submarine is moored at Royal Australian Navy (RAN) base HMAS Stirling, Australia. Diesel-electric Collins-class submarines, tailored specifically for Australian defense and a two-ocean surveillance role, are designed to be as quiet as advanced technology can achieve. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jeanette Mullinax)