Japan has entered a new phase in its defense policy with the deployment of advanced long-range missile systems, officially designated as the “Type 25” series. The step marks a significant transformation in the country’s military posture. It reflects a growing emphasis on proactive deterrence in response to evolving regional security challenges.
Japan’s Ground Self-Defense Force (JGSDF) formally inducted two new domestically developed missile systems into operational service. These include an upgraded surface-to-ship missile and a hypersonic glide weapon. Both systems were renamed under the “Type 25” designation, following Japan’s convention of naming defense equipment after the fiscal year of adoption, according to reports.
Enhanced range and strike capability
The deployment represents Japan’s first operational use of indigenous stand-off missile systems—capabilities designed to strike targets from long distances while minimizing exposure to enemy defenses.
One of the key components of this modernization effort is the upgraded surface-to-ship missile, derived from the earlier Type 12 system. While the original version had a relatively limited range, the improved variant can reach targets up to approximately 620 miles (1,000 kilometers) away.
This extended reach significantly expands Japan’s defensive envelope, enabling it to engage not only hostile naval vessels but also land-based targets such as missile launch sites. The system incorporates modern guidance technologies and network-based targeting, improving accuracy and operational flexibility.
Introduction of hypersonic weaponry
Alongside the upgraded missile, Japan has introduced a hypersonic glide vehicle known as the Hyper Velocity Gliding Projectile (HVGP). This weapon travels at extremely high speeds and follows unpredictable flight paths, making it difficult for conventional missile defense systems to intercept. The HVGP is primarily intended for the defense of remote islands, a critical concern for Japan given its geographic vulnerability, reported Naval News.
Initial versions have a range of several hundred kilometers, with plans to develop longer-range variants in the future.
For decades, Japan’s defense strategy was largely constrained to homeland protection, relying heavily on missile defense systems and support from allies, particularly the United States. However, rising tensions in East Asia—driven by expanding missile capabilities in neighboring countries—have exposed the limitations of a purely defensive approach.
The introduction of the Type 25 systems signals a shift toward a “stand-off defense” doctrine. This approach emphasizes the ability to neutralize threats at a distance, including targeting enemy launch sites before or during an attack. Such capabilities are intended to strengthen deterrence by increasing the potential cost for adversaries, as per reports.
Japan plans to further expand the role of these systems in its defense architecture. Additional deployments of the hypersonic weapon are scheduled across key locations, while future variants of the surface-to-ship missile are expected to be adapted for launch from naval vessels and aircraft.
These developments point toward a more integrated and flexible force structure, combining land-, sea-, and air-based strike capabilities.
Together, the two systems represent the first fully domestically developed Japanese stand-off missiles to enter frontline service, giving Tokyo a new ability to threaten hostile warships, invasion fleets and selected land targets from distances previously unavailable to Japanese forces, reported Defense Security Asia.