161111-N-UF697-215 PHILIPPINE SEA (Nov. 11, 2016) The Nimitz-class aircraft carrier USS Ronald Reagan (CVN 76) steams in formation during a photo exercise (PHOTOEX) to conclude Keen Sword 17 (KS17). KS17 is a biennial, Chairman of the Joint Chiefs of Staff-directed, U.S. Pacific Command-sponsored Field Training Exercise (FTX). KS17 is designed to meet mutual defense objectives by increasing combat readiness and interoperability between Japan Self-Defense Forces (JSDF) and U.S. Forces. Ronald Reagan is leading the Carrier Strike Group Five (CSG 5) patrol in the Philippine Sea supporting security and stability in the Indo-Asia-Pacific region. (U.S. Navy photo by Petty Officer 2nd Class Kevin V. Cunningham/Released)