The new defence minister in Tokyo has thrown down the gauntlet. Akihiro Saito, speaking at a security forum in Singapore this morning, warned that China’s military build-up has created a ‘huge arsenal’ that directly threatens regional stability. He flatly rejected accusations that Japan is itself on a militarist path, insisting the country’s increased defence spending is purely defensive.
This is a carefully choreographed message. The language is tougher than we’ve heard from recent Japanese administrations. Saito’s predecessors tiptoed around Beijing’s expansion. Not anymore. The subtext is clear: the United States wants its allies to carry a bigger stick, and Japan is now willing to hold it.
The minister’s remarks are soaked in domestic politics too. Prime Minister Kishi is pushing through a record five-year defence build-up plan. Doubling spending to 2 per cent of GDP by 2027. That’s a big ask for a pacifist public. Saito needs to sell this as a necessary response to China’s aggression, not a return to pre-war swagger.
Opposition figures were quick to pounce. The Constitutional Democratic Party accused the government of ‘whipping up fear’ to justify a military expansion they say lacks proper parliamentary scrutiny. Backbenchers in Kishi’s own coalition are restless. Some worry about a new arms race. Saito’s sharp tone is designed to quiet those doubts by pointing at an undeniable external threat.
Beijing’s reaction was predictable. The foreign ministry in Beijing accused Japan of ‘spreading false narratives’ and claimed China’s military modernisation is purely for self-defence. State media ran front-page editorials warning that Japan is ‘repeating the mistakes of the 1930s’. The historical echo is deliberate.
The real game here is about signalling to Washington. The Biden administration has been pressing Tokyo to take a more active role in deterring China. Japan’s new National Security Strategy, due later this year, is expected to codify a more assertive posture. Saito’s words are a trial balloon. He is testing how far he can push without triggering a diplomatic crisis.
Polling data from this week shows 54 per cent of Japanese voters now support a stronger military. That is a seismic shift from a decade ago. But support is soft. It could evaporate if the economy falters or if tensions with China lead to a real crisis. Saito knows this. That is why he is framing the debate in stark terms: it is China’s arsenal versus Japan’s survival.
Inside the Lobby, the chatter is that Saito is being positioned as a future leadership contender. His performance today will be closely watched by the factions. A strong, calm delivery? Check. No gaffes? Check. He stuck to the script. But the script itself is a departure from Japan’s post-war restraint.
The risk is that this rhetoric becomes self-fulfilling. China will not roll over. It will match Japan’s military growth. The region is splintering into armed camps. For now, Saito has the backing of the Americans and the hawks in his own party. The question is whether he can hold the line without lighting a fuse.
For those of us who remember the last time Japan-China relations soured this badly, the parallels are unsettling. The missing ingredient is economic interdependence. Trade ties have weakened. The safety net of mutual interest is fraying. Saito’s job is to prepare Japan for a world where that net no longer exists.
I will be watching the backbench reaction in the Diet next week. If the usual suspects start muttering about ‘reckless escalation’, the government has a problem. For now, the minister has the floor. He used it to warn, not to appease.








