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Japan Maritime Self-Defense Force Cmdr. Kentaro Sakabe, executive officer of the Akizuki-class destroyer JS Suzutsuki (DD 117), top right, and JMSDF Petty Officer 1st Class Takafumi Nakamura, assigned to the Asahi-class destroyer JS Asahi (DD 119), center, observe operations during an anti-submarine warfare exercise in the sonar control room aboard the Arleigh Burke-class guided-missile destroyer USS Milius (DDG 69) during Annual Exercise (ANNUALEX) 19. Milius is participating in ANNUALEX 19, a bilateral exercise which further develops coordination and interoperability of the premier alliance between the U.S. Navy and Japan Maritime Self-Defense Force.