By Wang Bing

Japanese media recently revealed that Japan's Ministry of Defense is pushing forward a new military space initiative to develop tactical AI satellites, aiming to build a space-based intelligent reconnaissance system for its long-range missiles. The project has been included in Japan's defense budget request for fiscal 2027.

The tactical AI satellites are primarily designed for target identification and missile guidance. According to the publicly available R&D plans, Japan's Ministry of Defense will partner with domestic defense contractors to develop prototype tactical AI satellites between 2027 and 2029, with in-orbit testing scheduled as early as FY2030. Military observer Teng Jianqun noted that these satellites can overcome the constraints of traditional reconnaissance satellites by enabling real-time processing of space intelligence and rapid data relay, thus accelerating decision-making for missile strikes.

Teng stated that Japan's primary objective in developing tactical AI satellites is to enable real-time strikes. Once a target is detected, AI processing can greatly lessen missile response times and improve strike precision. In essence, these satellites integrate AI into space platforms to combine communication, positioning, and reconnaissance capabilities into a unified intelligence support architecture.

In recent years, Japan has accelerated the development of a multi-orbit, all-weather, and combat-ready military satellite system in an effort to fix its operational shortcomings in space. Beyond tactical AI satellites, Japan is also developing multi-orbit observation platforms to monitor spacecraft across all orbits, from low Earth orbit (LEO) to geostationary orbit (GEO).

Japan's Ministry of Defense also plans to launch a Space Situational Awareness (SSA) satellite in FY2026 to bridge space-to-ground intelligence links and build a comprehensive, multi-layered military space reconnaissance network. Teng pointed out that this fully reveals Japan's ambitions to expand space military capabilities and push for remilitarization under the pretext of "defense and security."

Teng noted that Japan's maneuvers are aimed at vying for space dominance. Outer space is widely viewed as a force multiplier in modern warfare and a critical operational domain, where control enables hard-to-defend strikes against targets on Earth. As Japan expands its military build-up, its overall defense strategy has pivoted from an "exclusively defense-oriented policy" to "active offense." Meanwhile, amid the rapid rise of AI technology, Japan seeks to leverage these developments to energize its domestic defense industry and equip the Japan Self-Defense Forces (JSDF) with more lethal strike platforms.

Teng further analyzed that despite Japan's accelerated push to integrate AI into its military space command and control systems to build a space combat architecture, this ambitious blueprint faces headwinds on multiple fronts. First, it remains questionable whether Japan possesses sufficient technological reserves for deep space capabilities; furthermore, building a comprehensive space combat architecture is constrained by industrial and supply chain limitations, where deploying merely a few tactical satellites will fall far short. Second, within the US-Japan alliance, the US inevitably maintains constraints on Japan's military initiatives. Without US consent, Japan's ambitious space military plan could easily come to naught. Third, developing space capabilities is time-consuming and capital-intensive, requiring immense financial backing that Japan's current defense budget can hardly sustain.

Editor's Note: Originally published on military.cnr.cn, this article is translated from Chinese into English and edited by the China Military Online. The information and opinions in this article do not necessarily reflect the views of eng.chinamil.com.cn.