The USS Helena, a fast-attack nuclear submarine, recently surfaced in Guantanamo Bay, Cuba, following the arrival of Russian naval forces in Havana for drills with the Cuban government. The US Southern Command confirmed that the USS Helena's presence in Guantanamo Bay is part of a routine port visit as it transits the US Southern Command's geographic area of responsibility while carrying out its global maritime security and national defense mission.
Navy submarines' specific movements are typically classified and not publicly disclosed. Despite the Russian flotilla being just 90 miles off the coast of Florida, the Pentagon has emphasized that it does not pose a threat to US security. Navy destroyers and P-8 submarine-hunting aircraft have been monitoring the Russian ships as they navigate south along the east coast of the United States.