Japan's recent military and security moves mark a significant departure from its long-held post-World War II identity as a peaceful nation. In a series of gradual but institutionalized steps, the country is advancing a transformation of its national security strategy, moving onto a path that observers describe as remilitarization.
For decades after WWII, Japan adhered to an "exclusively defense-oriented policy," limiting its military to self-defense and avoiding offensive capabilities. However, this principle has been increasingly hollowed out by recent policy changes. In 2022, Japan revised three key security documents—the National Security Strategy, National Defense Strategy, and Defense Buildup Program—explicitly stating its intention to acquire "counterstrike capability." This represents a shift from passive defense to an offensive deterrence posture, allowing for preemptive strikes against perceived threats.
This year, in March 2026, Japan has already deployed long-range missiles to substantiate this capability. Upgraded Type 12 surface-to-ship missiles with a range of 1,000 kilometers are now stationed in Kumamoto Prefecture, while plans are underway for hypersonic missiles in Shizuoka Prefecture with eventual ranges reaching 2,000 kilometers. Additionally, the Japan Maritime Self-Defense Force has equipped its Aegis destroyer Chokai with Tomahawk cruise missiles, extending its reach to approximately 1,600 kilometers.
Beyond hardware, Japan is building integrated capabilities for future warfare. The Ground Self-Defense Force has established new offices dedicated to unmanned warfare, with large-scale drone procurement on the horizon. The Maritime Self-Defense Force is reorganizing its fleet structures to strengthen island defense under centralized command.
Concurrently, Japan is seeking to enshrine the Self-Defense Forces in its Constitution and has repeatedly emphasized issues related to the Taiwan region, further highlighting its strategic reorientation. These developments collectively point to an accelerated remilitarization process, raising important questions about regional dynamics and stability in Asia.
