Japan Launches First Post-WWII Intelligence Agency

Japan formally launched its first centralized national intelligence organ since World War II on July 31, with Prime Minister Sanae Takaichi chairing the inaugural meeting of a new National Intelligence Council. The newly created National Intelligence Bureau — referred to in some reports as the National Intelligence Agency — upgrades the Cabinet Intelligence and Research Office and serves as the council’s secretariat, according to Kyodo News.

A Break With Postwar Decentralization

The launch ends decades of deliberate fragmentation in Japan’s intelligence architecture, a structure shaped partly by fears of a resurgence of militarism. The Cabinet Intelligence and Research Office, created in 1986, collected and summarized information but lacked strong power to compel coordination across ministries. According to The Mainichi, which carried a Kyodo dispatch, the new bureau has about 730 staff, roughly the same as its predecessor.

The legal basis was created in May, when the Diet passed a law establishing both bodies. The law was supported by the LDP, Japan Innovation Party, Democratic Party for the People, Komeito and Sanseito, while the Constitutional Democratic Party of Japan opposed it. Kazuya Hara, a career National Police Agency official who served as an executive secretary to late Prime Minister Shinzo Abe, assumed the post of bureau director. At its first meeting, the National Intelligence Council confirmed basic operational policy, including measures to safeguard sensitive information.

The bureau will coordinate intelligence gathered by the National Police Agency, the Foreign Ministry, the Defense Ministry and other organizations, with authority to require them to share information. Its staffing structure reflects a police-heavy balance: the NPA contributes roughly 180 officials, the Defense Ministry about 100, the Foreign Ministry about 50, and the Public Security Intelligence Agency about 40, according to 澎湃新闻 (The Paper).

Diverging Interpretations

Tokyo has framed the reform as a necessary response to what it calls the most complex security environment since the end of World War II. Chief Cabinet Secretary Minoru Kihara said the council’s creation “marks the first step in Japan’s intelligence reforms” and would enable “sound decisions based on higher-quality, more timely intelligence.” China Daily reported that the launch is expected to pave the way for additional counterespionage legislation.

Chinese state media reacted sharply. A Global Times editorial published on July 29 called the July 31 launch date a “brazen challenge to the post-WWII international order,” linked the new structure to the wartime Tokko secret police and Unit 731, and said the agency signals a shift from passive defense toward “proactive reconnaissance and preemptive strikes.”

Analysts are divided over what the new institution actually means. Cai Liang, director of the Northeast Asia Research Center at the Shanghai Institutes for International Studies, told The Paper the launch is “a landmark event in the centralization and militarization of Japan’s security system” and an important step in Japan’s effort to “break free from the postwar system.” Kawashima Shin, a professor of international relations at the University of Tokyo, offered a more cautious reading, describing the bureau as “a Police Agency-led organization” designed to balance the Foreign and Defense Ministries. “If the National Security Secretariat handles external security affairs, then the National Intelligence Agency can be viewed as a domestic-facing, police-led institution,” Kawashima said.

Implications for Japan’s Defense Posture

The debate centers on whether Japan’s “exclusively defense-oriented” policy is giving way to a more preemptive approach. Since taking office in October 2025, Takaichi has relaxed arms export restrictions, expanded defense spending and pushed counterstrike capability while leaving the constitution unchanged. Experts quoted by The Paper argue the substance of exclusive defense is changing even without an amendment.

The agency also has an external dimension. FBI Director Kash Patel said in May that the new bureau would “greatly deepen” US-Japan cooperation, pledging support in cybersecurity, counterintelligence, counterespionage and counterterrorism. The Paper also reported that Australian officials have been advising Tokyo on intelligence-sharing strategy, and that “intelligence cooperation” was listed among seven priority projects after a Japan-Australia summit. Global Times warned that the bureau would become a “central node” connecting Japan to Western intelligence networks, deepening confrontation in the Asia-Pacific.

What to Watch

Domestic concerns remain unresolved. Opposition lawmakers have questioned the bodies’ political neutrality and warned of privacy infringement, pointing to the absence of parliamentary oversight provisions in the new law. The government is expected to draft Japan’s first national intelligence strategy, establish an expert panel by autumn to discuss counterespionage legislation for submission to the 2027 regular Diet session, and consider bills on registering foreign-government lobbyists and creating a Japanese foreign intelligence agency.

The launch is a milestone in Japan’s postwar security evolution, but its full significance will depend on how the new institutions exercise their powers. Whether the bureau remains primarily a domestic counterintelligence hub — or becomes a foundation for a more interventionist security posture — will define the debate in the months ahead.