190626-N-KO930-0392 PACIFIC OCEAN (June 26, 2019) A Sailor refuels an E/A-18G Growler assigned to the "Cougars" of Electronic Attack Squadron (VAQ) 139 on the flight deck of the aircraft carrier USS Nimitz (CVN 68). Nimitz is currently underway conducting routine operations. (U.S. Navy photo by Mass Communication Specialist 3rd Class Olivia Banmally Nichols/Released)