In a significant move to bolster regional security, Japan and the United States have commenced a large-scale joint military exercise known as Keen Sword 27. The biennial drills, involving approximately 45,000 Japanese personnel and 12,000 US service members, are focused on defending Japan’s southwestern islands and enhancing military coordination amid heightened tensions in the region.
The exercises, running until October 29, are taking place across several remote islands, including Tanegashima, Yonaguni, and Ishigaki. They encompass a wide range of military operations such as amphibious landings, air and missile defense, mine-clearing operations, intelligence gathering, logistics, resupply, and casualty evacuation. Notably, this year’s drills see participation from seven other countries, including newcomers France, Germany, the Netherlands, New Zealand, and the Philippines.
Strategically situated near Taiwan, Yonaguni Island plays a crucial role in the exercises. Japan has deployed its Type-25 land-to-ship missile system on the island for the first time, although no test-firing is planned. The island also hosts US military systems, including the NMESIS anti-ship missile system and the MADIS short-range air defense system. Additionally, the HIMARS mobile rocket launcher is stationed on nearby Ishigaki, with live-fire exercises scheduled at a Pacific Ocean training site.
Japanese officials emphasize that the exercises are not aimed at any specific country but are part of broader efforts to ensure military readiness and regional stability. This comes amidst strained relations with China over Taiwan and concerns about China’s growing military presence in the area. In response, Japan has been fortifying its defenses on the southwestern islands, deploying longer-range missiles and interception systems.
The joint exercises also occur against the backdrop of ongoing public debate in Japan regarding the presence of US military bases, particularly on Okinawa. Local residents have expressed concerns about issues such as noise, pollution, and criminal incidents associated with the bases.
Overall, Keen Sword 27 underscores the deepening defense cooperation between Japan and the United States, highlighting their shared commitment to addressing evolving security challenges in the Indo-Pacific region.