Iron Fist 26: Japan and the United States conducted the Iron Fist 26 exercise, in which they demonstrated their amphibious and expeditionary capabilities through maneuvers carried out on the islands of Tanegashima and Okinawa. The activities included landing operations, joint planning, and logistical coordination between units from both countries, and just a few days later Japan deployed Type 12 anti-ship missiles in Kumamoto Prefecture—measures that reflect the growing strategic competition in the Indo-Pacific.
The maneuvers took place on March 2 and 4 and involved members of the Japan Ground Self-Defense Force’s Amphibious Rapid Deployment Brigade (ARDB) and the 3rd Amphibious Rapid Deployment Regiment, who trained alongside U.S. Marines and sailors from the 3rd Marine Expeditionary Brigade (3rd MEB) and the 31st Marine Expeditionary Unit (31st MEU). The bilateral training aimed to improve joint operational readiness through the integration of planning, logistics, and tactics in realistic scenarios.
Weeks of joint staff work enabled the coordinated execution of complex ship-to-shore maneuvers, one of the core capabilities in amphibious operations. According to Brig. Gen. Ryan M. Hoyle, commander of the U.S. 3rd Marine Expeditionary Brigade, “excellence in execution is the result of detailed planning,” highlighting that both the personnel responsible for the concept of operations and the troops that conducted the landing demonstrated close coordination during the exercise.
The training was led by Japan’s Amphibious Rapid Deployment Brigade (ARDB) and showcased operational integration between the two forces. This year’s edition included operations on Tanegashima for the first time, expanding Iron Fist’s geographic scope and reflecting Japan and the United States’ commitment to strengthening readiness under the bilateral alliance framework.
In that regard, Hoyle stated that “the expansion of our training opportunities during Iron Fist, to include Tanegashima, is a clear sign of our shared commitment to regional security.” The officer added that both forces’ ability to respond quickly and decisively to any contingency is a key element for Indo-Pacific stability.
One outcome of the exercise was the final certification of Japan’s 3rd Amphibious Rapid Deployment Regiment. Combined with the full certification achieved last month by the U.S. 31st Marine Expeditionary Unit (31st MEU), both countries now have multiple amphibious formations capable of rapidly deploying to different points across the region.
Iron Fist, which this year reached its twentieth edition, is designed to improve interoperability between the U.S. Marine Corps (USMC), the U.S. Navy (USN), the Japan Ground Self-Defense Force (JGSDF), and the Japan Maritime Self-Defense Force (JMSDF). Through these annual maneuvers, both countries seek to strengthen operational coordination and joint response capacity in crisis scenarios in the Indo-Pacific.
These activities are taking place in a regional context marked by China’s growing military activity. In recent days, the People’s Liberation Army (PLA) reported that it monitored the transit of a U.S. Navy (USN) P-8A Poseidon maritime patrol aircraft during a flight over the Taiwan Strait, while the People’s Liberation Army Navy (PLAN) continues expanding its fleet with the induction of new Type 055 guided-missile destroyers.
Images obtained from U.S. Indo-Pacific Command.
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