U.S. Central Command: 'U.S. Marines conduct close-quarters tactics training aboard USS Tripoli (LHA 7) as the amphibious assault ship sails in the Arabian Sea. During training evolutions like these, embarked Marines hone their skills for missions such as maritime interception operations. Tripoli is currently executing a mission to blockade ships entering and departing Iranian ports. The blockade is being enforced impartially against vessels of all nations.'