200131-N-NV251-0072 PORTSMOUTH, Va. (Jan. 31, 2020) Sailors train for firefighting aboard the aircraft carrier USS George H. W. Bush (CVN 77). George H.W. Bush is currently in Norfolk Naval Shipyard for its docking planned incremental availability. (U.S. Navy photo by Mass Communication Specialist 3rd Class Michael Joseph Flesch/Released)