191006-N-LI114-1203 SOUTH CHINA SEA (Oct. 6, 2019) The amphibious assault ship USS Boxer (LHD 4), left, is underway as the aircraft carrier USS Ronald Reagan (CVN 76) conducts flight operations while conducting security and stability operations in the U.S. 7th Fleet area of operations. U.S. 7th Fleet is the largest numbered fleet in the world, and the U.S. Navy has operated in the Indo-Pacific region for more than 70 years, providing credible, ready forces, to help preserve peace and prevent conflict. (U.S. Navy Photo by Mass Communication Specialist Seaman Michael B. Jarmiolowski/Released)