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Two Japan Ground Self-Defense Force UH-60JAs prepare to insert two U.S. Army 2nd Battalion, 1st Infantry Regiment air assault squads, Sep. 20, 2016 during a bilateral combined arms live-fire exercise in Yakima Training Center, Wash. The CALFEX is the culminating event for Rising Thunder, a part of Pacific Pathways, which is designed to increase interoperability between partner nations.