USS Theodore Roosevelt conducts live-fire exercise in Pacific Ocean

U.S. Navy Aviation Ordnanceman 3rd Class Joshua Harrington observes an Mk. 38 25mm machine gun fire during a live-fire exercise aboard Nimitz-class aircraft carrier USS Theodore Roosevelt (CVN 71) in the Pacific Ocean, June 10, 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 Devin Kraemer)