Japan’s lower house of parliament has approved legislation to create a national intelligence council, a decisive step towards building a more autonomous and capable espionage apparatus. The bill, backed by the ruling Liberal Democratic Party alongside the Japan Innovation Party and two opposition groups, now moves to the upper chamber, where the Democratic Party for the People has signalled its support. Passage is widely expected before the current Diet session ends, handing Prime Minister Sanae Takaichi a significant legislative victory ahead of her re-election bid in February.

Viewed from Tokyo, this initiative marks a quiet but profound shift in Japan’s defence posture. For decades the country has relied heavily on intelligence-sharing arrangements with the United States and, to a lesser extent, other Five Eyes partners. The new council is designed to centralise analysis across ministries, reduce dependence on foreign agencies, and build indigenous capacity for both human and signals intelligence. The urgency behind the reform comes not only from rising tensions in the Taiwan Strait and North Korea’s missile programme, but also from a more diffuse threat: information warfare.

Analysts in Berlin note that a specific episode involving the prime minister appears to have crystallised political will in Tokyo. Shortly before Takaichi’s scheduled leadership vote in February, Chinese users attempted to weaponise ChatGPT to generate fake corruption allegations and smear campaigns against the conservative politician. OpenAI reportedly blocked the effort and disclosed the attempt, but the incident underscored how easily generative artificial intelligence can be deployed to destabilise domestic politics. For a government long focused on kinetic threats, the realisation that disinformation campaigns can be automated and scaled by hostile actors has spurred a rethink of intelligence priorities.

From Washington’s perspective, Japan’s move is both welcome and potentially complicated. American officials have long pressed Tokyo to do more in intelligence collection and analytical integration, particularly as the bilateral alliance deepens its operational coordination. Yet a more independent Japanese intelligence service could also introduce friction, especially if Tokyo begins to hedge its assessments or pursue sources that Washington would prefer remain dormant. The new council’s precise relationship with the Cabinet Intelligence and Communication Office, which currently coordinates foreign intelligence, remains to be clarified.

Looking ahead, passage of the bill in the upper house appears assured, though the opposition is likely to press for oversight mechanisms to prevent the kind of domestic surveillance abuses that have historically made Japanese voters wary of a powerful security state. The real test will come in implementation: building a professional, politically insulated intelligence cadre from a civil service culture that prizes consensus over operational secrecy. If Takaichi’s government can pull that off, Japan may finally acquire the independent analytical muscle that its strategic ambitions demand.