Audio of a Sailor aboard USS Michael Murphy (DDG 112), with video from the guided-missile destroyer’s embarked helicopter flying over the Gulf of Oman, as the U.S. Navy diverts a merchant vessel while enforcing the blockade on ships entering or departing Iranian ports. (U.S. Central Command Public Affairs video)

The command overseeing US forces in the Middle East just got a third aircraft carrier — and a lot more firepower