201208-N-HS181-2001 PACIFIC OCEAN (Dec. 8, 2020) The Nimitz-class nuclear aircraft carrier USS Carl Vinson (CVN 70) conducts a live fire exercise during routine maritime operations. (U.S. Navy video by Mass Communications Specialist 3rd Class Haydn N. Smith/Released)#navy #military #ciws Close In Weapon System.50 caliber