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The crew members of the Japan Ground Self-Defense Force Type 12 Surface to Ship Missile System and the U.S. Army M-142 High Mobility Artillery Rocket System pose for a picture with their vehicles as part of the Orient Shield 2019 media day, Sept. 17 2019, Oyanohara Training Area, Japan. OS 19 is a premier U.S. Army and Japan Ground Self-Defense Force bilateral field training exercise that is meant to increase interoperability by testing and refining multi-domain and cross-domain concepts.