200608-N-VY375-1238 PHILIPPINE SEA (June 8, 2020) Lt. Utsav Patwardhan teaches Sailors proper placement of a chest tube on a simulated medical casualty during a mass casualty drill aboard the aircraft carrier USS Theodore Roosevelt (CVN 71), June 8, 2020. The Theodore Roosevelt Carrier Strike Group is on a scheduled deployment to the Indo-Pacific. (U.S. Navy photo by Mass Communication Specialist 2nd Class Pyoung K. Yi/Released)