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PHILIPPINE SEA (November 2, 2018) Operations Specialist 1st Class Jose Cartagena, from Flowery Branch, Georgia, monitors his workstation in the Combat Direction Center aboard the Navy's forward-deployed aircraft carrier, USS Ronald Reagan (CVN 76) during Keen Sword 2019. Keen Sword 2019 is a joint, bilateral field-training exercise involving U.S. military and Japan Maritime Self-Defense Force personnel, designed to increase combat readiness and interoperability of the Japan-U.S. alliance.