In domestic Japanese politics, the prevailing narrative under Prime Minister Sanae Takaichi is that Japan is finally doing what strategic necessity has long demanded: shedding a post-war pacifism and building a defensive stance to respond to the threats it actually faces. China’s military modernisation, North Korea’s advancing nuclear programme, and growing uncertainty about the durability of American extended deterrence have collectively created a regional environment that the old stance was not designed to manage, and it would be difficult to argue that Tokyo’s strategic anxieties are manufactured. Where the narrative becomes less convincing, however, is in its implicit suggestion that what is happening now represents a clean break with Japan’s post-war strategic tradition, since the deeper logic driving the current transformation is in many respects aligned with the pragmatism that produced the Yoshida Doctrine in the first place. Former Prime Minister Yoshida’s calculation was to outsource hard security to Washington, concentrate on economic reconstruction, and defer the political costs of rearmament to a later moment when conditions made them more manageable. That moment has arrived.
Understanding the current posture requires analysing a process of change that was rough and dilatory, and that was shaped as much by domestic political resistance as by external threat. The government’s acknowledgement in 1954 that the Constitution does not prohibit individual self-defence, the 1% GDP spending cap of 1976, the Peace Keeping Operations Law of 1992, and the 2015 Legislation for Peace and Security each represented gradual steps in a broadly consistent direction, taken slowly against persistent opposition.
The Liberal Democratic Party’s (LDP) coalition with the pacifist-leaning Komeito formed the structural constraint that forced each reform into a more limited shape than its architects might have preferred, and the mass protests of 2015 showed that public discomfort with the pace of change was genuine and politically consequential.
This complicates the idea that Japan’s strategic evolution was simply waiting to happen once the right leader came along. The resistance was real, and it left its mark on the structure of the reforms ultimately taken.
Former Prime Minister Shinzo Abe was the figure who most ambitiously pushed against those constraints, and his approach reveals something important about how the transformation has been managed. His “Proactive Contribution to Peace” framework, introduced after his return to power in 2012, was careful to wrap what was in substance a significant expansion of military capacity in the language of international responsibility instead of national interest. It reflected a genuine awareness that Japan’s international image had shifted from being a modernising partner to a potential threat in the interwar period, that the manner in which rearmament is framed carries its own strategic consequences. Abe’s burning house analogy, used to justify the 2014 reinterpretation of Article 9 permitting collective self-defence, was effective precisely because it recast restraint as the more dangerous posture rather than the more responsible one. His critics argued that the reinterpretation bypassed the formal amendment process in ways that set a troubling precedent, and the political opposition it generated left the project considerably more incomplete than Abe had hoped.
The December 2022 strategic documents approved under Kishida pushed the evolutionfurther still, establishing that Japan must take primary responsibility for its own defence instead of treating American deterrence as a first resort, and providing the legal and doctrinal basis for counterstrike capability. This is a meaningful shift, and it would be a mistake to characterise it as merely symbolic. At the same time, the capability remains operationally ambiguous in ways that matter, and whether it constitutes a genuine deterrent or primarily an assertion of strategic seriousness is a question that only procurement decisions in the future can answer.
Takaichi has reinforced these foundations more than any of her predecessors, partly because the dissolution of the LDP–Komeito coalition and the resulting supermajority with the Japan Innovation Party removed the institutional brake that had shaped defence reform for three decades. The FY2026 budget of 9.04 trillion yen and the explicit framing of a Chinese attack on Taiwan as a potential “survival-threatening situation” for Japan each represent steps that go beyond what earlier governments felt able to say publicly. Article 9 has not been amended, and the vocabulary of restraint has not been retired. But the gap between what the constitution says and what Japan is now prepared to do has grown wide enough that the continuity argument and the transformation argument are, at this point, both defensible, which is itself a significant development. Japan has not become a conventional military power in the full sense, but it is pursuing capabilities and making commitments that bring it considerably closer. Whether this represents the fulfilment of a pragmatic tradition that was always oriented toward this outcome, or a genuine rupture with the post-war identity that tradition was supposed to sustain, is a question that current events have raised more clearly than it has been answered.
Written by Govind Anoop, Edited by Konstantin Philipp
Photo Credit: The Original Text of the Constitution of Japan as of 2023 by Akonnchiroll (Uploaded May 4, 2023) on Wikimedia Commons
