USS Theodore Roosevelt conducts live-fire exercise in Pacific Ocean

PACIFIC OCEAN (Jan. 14, 2026) – U.S. Navy Gunner’s Mate Seaman Cristian Diaz (left) and Gunner’s Mate Seaman Apprentice Eduardo Hernandez prepare to shoot an Mk. 38 25mm machine gun during a live-fire gunnery exercise aboard Nimitz-class aircraft carrier USS Theodore Roosevelt (CVN 71) Jan. 14, 2026. Theodore Roosevelt, flagship of Carrier Strike Group (CSG) 9, is underway conducting exercises to bolster strike group readiness and capability in the U.S. 3rd Fleet area of operations. (U.S. Navy photo by Mass Communication Specialist Seaman Apprentice Tyler Harstad)