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Japan prepares for potential Trump pressure on defense spending, currency

Tokyo is girding itself for heightened demands from a potential Trump administration on military expenditure and yen policy, amid uncertainty over the direction of US politics following the midterm elections.

LSN World News · 18 August 2026

Japan prepares for potential Trump pressure on defense spending, currency

Japanese officials and analysts are increasingly focused on how shifts in Washington's political landscape could reshape bilateral relations, particularly regarding defense commitments and currency matters that have long been contentious in US-Japan trade dynamics.

The prospect of renewed Trump-era policies has prompted policymakers in Tokyo to review their positions on defense spending, which has already seen significant increases in recent years as Japan expands its military capabilities in response to regional security concerns. Japan currently remains one of Washington's most important security partners in Asia, hosting thousands of US military personnel and contributing substantially to regional stability efforts.

Currency policy presents another area of potential friction. The yen's recent weakness has drawn scrutiny from some quarters, though Japanese authorities maintain the currency movements reflect economic fundamentals rather than deliberate intervention. A Trump administration has previously criticized trading partners' exchange rate policies and raised concerns about competitive devaluation.

Japanese officials are monitoring the midterm election developments closely while preparing contingency positions across multiple policy areas. Analysts note that Japan's strategic alliance with the United States remains central to its security architecture, suggesting that Tokyo will likely seek to accommodate reasonable demands while protecting core national interests.

The timing of these preparations underscores Japan's vulnerability to shifts in American political priorities, particularly given the volatile nature of bilateral economic and security discussions during the previous Trump administration.