Japan’s FOIP Faces a Trump Contradiction

Japan can’t hedge against Trump without stabilising relations with China

By Mike Mochizuki, Non-Resident Fellow at the Quincy Institute, Japan-U.S. Relations Chair in Memory of Gaston Sigur at the Elliott School of International Affairs in George Washington University, and APP Member.

First Published June 3, 2026 on East Asia Forum.

Despite US President Donald Trump’s disruptive foreign policies, Japan is trying to lock in its alliance with the United States, out of fear of China. Japanese Prime Minister Sanae Takaichi has flattered Trump and appeased his defence and economic demands while vowing to implement former prime minister Shinzo Abe’s vision of a ‘Free and Open Indo-Pacific’ (FOIP). This is a strategy that will not work.

Trump has undercut the key pillars of Japan’s FOIP by defying the rules-based international order, rejecting the provision of international public goods, and weakening multilateral agreements to promote free trade. The contradiction between embracing Trump and promoting FOIP is so stark that it hollows out FOIP’s goals and principles.

While Japan is fixated on maintaining supply chain resilience against possible Chinese economic coercion, the tragic irony is that the US–Israeli war against Iran has sabotaged Japan’s economic security. Trump’s erratic behaviour means that US allies can no longer rely on Washington.

US allies should seriously consider a Plan B as an alternative to their Plan A of virtual wholesale accommodation of Trump. But rather than developing a Plan B, mainstream Japanese strategists are advocating what they call a ‘Plan A+’ — a hedge against the uncertainties of US foreign policy.

Under Plan A+, Japan would supplement its brand of ‘America First’ diplomacy in two ways. It would strengthen ties with like-minded middle powers to counter Chinese military assertiveness and economic coercion. Japan would also build up its defence capabilities to reduce dependence on the US security commitment.

This dual-track hedge is inadequate and misguided.

Though European middle powers are wary of China, they cannot compensate for a weakening US security commitment. European states may show a naval presence, but they are too distant to play a critical role in Japan’s paramount security concerns, such as the defence of Taiwan.

Many European countries have also reset relations with China in a more positive direction. This contrasts sharply with the acute deterioration in Japan–China relations after Takaichi became prime minister. Most middle powers in the Asia Pacific likewise remain reluctant to join Japan in a collective defence pact that risks a military conflict with China.

Even if Japan builds up its defence capabilities to deter China, Beijing will respond with its own military buildup to dissuade Japan from intervening in a Taiwan conflict. The ensuing arms race will favour China, which has more economic resources and fewer political constraints on military spending. China’s vast geographic area makes Japan more vulnerable to missile attacks and China more militarily resilient. A Japanese defence buildup is not a hedge against a weakening US security commitment, but wishful thinking that the United States will return to its previous role after Trump. In fact, Japan’s current face-off with China will make Japan more militarily dependent upon the United States.

Plan A+ will also exacerbate Japan–China tensions. The growing antagonism between Tokyo and Beijing is becoming a liability for Japan’s middle power diplomacy. When Japan was an economic superpower, Tokyo made the strategic choice not to become a great power in the traditional sense by adopting stringent constraints on its own defence policies as well as upholding the pacifist article 9 of the postwar constitution. Japan therefore emphasised multilateral cooperation and pursued positive engagement with China as well as maintained its alliance with the United States.

Today, Japan has been relaxing many of these self-imposed constraints and is seriously considering constitutional revision, but the relative decline of its economic capabilities and the shrinkage of its population are cementing Japan’s status as a middle power. Even more so than before, Japan must cooperate with other countries and eschew unilateralism. But its current middle power diplomacy of trying to get Asia Pacific countries to counter China will intensify China’s hostility towards Japan.

Most countries in the region, however, do not want to choose between the United States and China, nor between Japan and China. Though they prefer Japan to restrain US–China rivalry, Tokyo is instead anxious about Trump’s interest in stabilising US–China relations.

Takaichi has indicated that Japan remains open to dialogue with China, but her approach is passive. Tokyo needs to act proactively to stabilise relations by addressing concerns that Japan seeks the independence of Taiwan or its permanent separation from China. To reassure China, Japan should reaffirm the points about Taiwan made in the 1972 Japan–China normalisation communique. It should also explicitly state that it does not support Taiwan’s independence and would accept any resolution accepted by both sides of the Taiwan Strait.

When Japan normalised relations with China in 1972, then foreign minister Masayoshi Ohira stated that Japan does not support the Taiwan independence movement. Moreover, former prime ministers Keizo Obuchi and Yasuo Fukuda reaffirmed this stance in 1998 and 2007 respectively by declaring that Japan does not support the independence of Taiwan. Since then, Japanese leaders have refrained from providing this reassurance to Beijing, which has raised Chinese suspicions that Japan is veering away from its one-China policy. This shift contrasts sharply with the United States, which has repeatedly stated that it does not support Taiwan’s independence.

Stabilising Japan–China relations would let Japan reformulate FOIP to restrain great power competition and develop a more stable and cooperative Asia.

Though Japanese officials claim FOIP is not directed against China and that Japan would welcome China’s participation, the operational reality of FOIP is to counter Chinese influence. FOIP stresses international public goods, but Japan’s regional capacity-building, promotion of connectivity, security minilateralism (small-group diplomacy among aligned states) and support for high standard trade and investment rules look more like international club goods.

In May 2026, Prime Minister Takaichi updated Abe’s FOIP framework by stressing regional cooperation to enhance economic resilience and energy security. But even under this slightly amended FOIP framework, Tokyo still seeks to mobilise Asian countries to resist China rather than nurture an inclusive regional order.

A more divided and conflict-ridden world makes a fundamentally revised FOIP more vital for advancing regional cooperation.

Japan could encourage the deepening of the Regional Comprehensive Economic Partnership, the world’s largest regional trade bloc, which includes China. Tokyo could push to reduce non-tariff barriers, accelerate tariff elimination, strengthen services and investment rules and improve enforcement and dispute settlement.

Japan could also be more forward-looking on China’s interest in joining the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP), encouraging China to undertake the economic reforms needed to meet CPTPP standards on labour rights, environmental protection, digital trade and state-owned enterprises. This would help both China and Taiwan join the CPTPP—facilitating a resolution of the Taiwan question through dialogue rather than military coercion.

A revised FOIP could also help Japan promote maritime confidence-building and crisis prevention. For example, in addition to coast guard capacity building for Southeast Asian countries, Japan could encourage joint exercises with China on search and rescue missions and responses to maritime disasters. Tokyo could also work with Beijing to strengthen the bilateral maritime and aerial communication mechanism and encourage the development of such mechanisms among other states in the region.

With the United States having abandoned international efforts to address climate change, Japan could help lead an Asian effort to reduce greenhouse gas emissions and improve energy efficiency. This demands close cooperation with China, which has made major strides in green technology, as well as with regional middle powers.

Reorienting FOIP cuts against Takaichi’s conservative nationalist instincts and the mood of the Japanese people. But a reorientation is necessary if Japan is to lead as a middle power that restrains great power rivalry rather than fuels it.