In a significant demonstration of military cooperation, Japan and the United States have commenced the biennial joint military exercise, Keen Sword 27, amid escalating regional tensions. The exercise, which focuses on defending Japan’s southwestern islands, involves approximately 45,000 Japanese personnel and 12,000 U.S. service members. It also includes participation from seven other countries such as France, Germany, and the Philippines, marking a broader international engagement.
Running through October 29, the drills encompass a wide range of military operations including amphibious landings, air and missile defense, mine-clearing, and intelligence gathering. Notably, activities are taking place on remote islands like Tanegashima, Yonaguni, and Ishigaki. Yonaguni, positioned about 110 kilometers east of Taiwan, holds strategic importance given the current security dynamics in the region. For the first time, Japan has deployed its Type-25 land-to-ship missile system to Yonaguni, although no test-firing is planned.
The exercise also showcases advanced U.S. military systems. The NMESIS anti-ship missile system, the MADIS short-range air defense system, and the HIMARS mobile rocket launcher are part of the drills, with live-fire exercises scheduled in the Pacific Ocean training site. These joint activities underscore the commitment of Japan and the U.S. to bolster defense capabilities and readiness amid growing security challenges.
Japanese officials emphasize that these exercises are not targeted at any specific country but are essential for safeguarding national territory and ensuring regional stability. The drills occur against a backdrop of strained relations with China, primarily due to disagreements over Taiwan and concerns about China’s increasing military activities in the area. Recent years have seen Japan fortify its southwestern island defenses, including deploying longer-range missiles and interception systems.
Despite the military focus, the exercises are also subject to domestic scrutiny, particularly regarding the U.S. military presence in Japan. Public debate is ongoing about the impact of U.S. bases, especially on Okinawa, where residents have expressed concerns over noise, pollution, and criminal incidents.
Overall, Keen Sword 27 highlights the deepening defense cooperation between Japan and the United States as they navigate evolving security challenges in the Indo-Pacific region. The joint exercises reinforce the strategic partnership between the two nations, aiming to enhance military preparedness and foster regional peace and stability.