200702-N-CU072-1182 PACIFIC OCEAN (July 2, 2020) Damage Controlman 2nd Class David Ortiz, from San Diego, takes atmospheric readings during a toxic gas drill aboard the Arleigh Burke-class guided-missile destroyer USS Russell (DDG 59), July 2, 2020. Russell, part of the Theodore Roosevelt Carrier Strike Group, is operating in the Eastern Pacific during a scheduled deployment. (U.S. Navy photo by Mass Communication Specialist 3rd Class Sean Lynch/Released)