PHILIPPINE SEA (Nov. 10, 2016) The Ticonderoga-class guided-missile cruiser USS Chancellorsville (CG 62) transits the Philippine Sea as part of Keen Sword 17. 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. Chancellorsville is on patrol in the Philippine Sea with Carrier Strike Group Five (CSG 5) supporting security and stability in the Indo-Asia-Pacific region. (U.S. Navy photo by Petty Officer 2nd Class Andrew Schneider)