170221-N-BL637-015 SOUTH CHINA SEA (Feb. 21, 2017) Machinist’s Mate 1st Class Caesare Reyes, from Beaumont, Calif., checks the pressure of a liquid oxygen cart in an O2N2 plant aboard the aircraft carrier USS Carl Vinson (CVN 70). The Carl Vinson Carrier Strike Group is on a scheduled western Pacific deployment as part of the U.S. Pacific Fleet-led initiative to extend the command and control functions of U.S. 3rd Fleet. U.S Navy aircraft carrier strike groups have patrolled the Indo-Asia-Pacific regularly and routinely for more than 70 years. (U.S. Navy Photo by Mass Communication Specialist 2nd Class Sean M. Castellano/Released)