This week, the U.S. State Department informed Congress of a potential $200 million defense sale to Japan, aimed at bolstering its Hyper Velocity Gliding Projectile (HVGP) anti-ship missile development program. The Japanese government has requested equipment and services to enhance its capabilities in producing hypersonic munitions, specifically for preparing for upcoming tests. While the exact specifications of the equipment remain undisclosed, the Defense Security Cooperation Agency has indicated that the approved sale will significantly enhance Japan’s ability to counter current and future threats, particularly for the defense of its remote islands. Japan initiated work on the HVGP in the late 2010s amid rising concerns regarding territorial integrity, especially concerning the Ryukyu Islands in the East China Sea. The new munitions are scheduled for delivery by 2026. Japan’s strategic focus is underscored by recent actions, including the procurement of 400 Tomahawk cruise missiles and the development of an upgraded Type 12 anti-ship missile capable of submarine launch. The HVGP program will produce two variants: Block 1 for training and Block 2, featuring an autonomous guidance system for engaging surface and land targets up to 2,000 km, with an anticipated Block 2B extending range to 2,900 km. A prototype tested in California last year successfully achieved a range of 920 km. This initiative underscores Japan’s commitment to enhancing its maritime strike capabilities in an increasingly contested regional security environment.
