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.