200403-N-IW125-1008 PHILIPPINE SEA (April 3, 2020) Chief Damage Controlman Gregory O’brien, left, from Harper, Texas, trains Sailors on the Naval Firefighter’s Thermal Imager aboard the Ticonderoga-class guided-missile cruiser USS Bunker Hill (CG 52). Bunker Hill is deployed to the U.S. 7th Fleet area of operations in support of security and stability in the Indo-Pacific region. (U.S. Navy photo by Mass Communication Specialist 3rd Class Nicholas V. Huynh/Released)