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A crew member of the United States Navy Virginia-class submarine USS North Carolina (SSN 777) throws a line ashore as the submarine arrives at Fleet Base West, Rockingham, Western Australia. *** Local Caption *** United States Navy Virginia-class submarine USS North Carolina (SSN 777) arrived at Fleet Base West, Rockingham, Western Australia. The nuclear-powered, conventionally-armed submarine is in Australia for a routine visit to provide respite for the crew. The visit reflects the ongoing strength of Australia�s alliance with the United States and builds on the visits of prior nuclear-powered submarines over the last 60 years.