A Marine Corps AH-1 Viper with HMLA-369 and Japan Air Self Defense Force (JSDF) UH-1 Iroquois fly side by side during live fire training as part of Resolute Dragon 21 on Yausubetsu Training Area Dec. 7, 2021. RD21 is the largest bilateral field training exercise between the Marine Corps and the JSDF in 2021. RD21 is designed to strengthen the defensive capabilities of the Alliance by exercising integrated command and control, targeting, combined arms, and maneuver across multiple domains. ( Marine Corps photo by Sgt. Mario A. Ramirez)

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Keywords: japan, marines, rd21, resolutedragon21, training, usmc