INDIAN OCEAN (Dec. 17, 2021) An MH-60S Sea Hawk, assigned to the �Black Knights� of Helicopter Sea Combat Squadron (HSC) 4, flies next to the Nimitz-class aircraft carrier USS Carl Vinson (CVN 70) while transiting the Indian Ocean during a bilateral training exercise with the Royal Australian Air Force, Dec. 17, 2021. The Carl Vinson Carrier Strike Group and elements of the Royal Australian Navy and Air Force are conducting a bilateral training exercise to test and refine warfighting capabilities in support of a free and open Indo-Pacific. (U.S. Navy photo by Mass Communication Specialist 2nd Class Haydn N. Smith)