The U.S. Navy and NATO Air Command conducted 2021 s first joint maritime and air training mission in the Black Sea on January 23. The Arleigh Burke-class guided-missile destroyer USS Donald Cook (DDG 75); one U.S. Navy P-8A Poseidon Maritime Patrol Reconnaissance aircraft from VP-46 out of Sigonella, Italy,; and NATO Air Command aircraft E-3A Airborne Warning and Control System (AWACS) aircraft based in Geilenkirchen Air Base, Germany, participated.