U.S. Seeks Over 3 Trillion Yen From Japan to Fund American Forces Under New Support Pact, Nikkei Reports

U.S. negotiators have asked Japan to sharply increase the funding it provides to support American forces stationed in the country, seeking more than 3 trillion yen (about $18.8 billion) over the next five years, according to information obtained by Nikkei.

The request surfaced in discussions over a new “host-nation support” agreement, the framework under which Tokyo helps cover a range of costs associated with the U.S. military presence in Japan. If accepted, the proposed total would represent a major jump from current outlays—nearly three times the existing level of spending.

The talks come as the United States and Japan continue to deepen security cooperation across the region, including through joint training activities involving U.S. troops and Japan’s Self-Defense Forces. One recent example is the Balikatan exercise in the Philippines, where personnel from both countries participated alongside partners in large-scale drills designed to improve readiness and interoperability.

Host-nation support has long been a sensitive issue in the U.S.-Japan alliance, balancing Washington’s desire to share more of the financial burden with Tokyo’s domestic constraints and budget priorities. The latest U.S. request, if it becomes the basis of a final agreement, would mark one of the most significant increases in Japan’s contributions in years and could intensify scrutiny at home over the costs and terms of hosting foreign troops.

No final deal has been announced, and the discussions are ongoing. But the scale of the U.S. figure—more than 3 trillion yen over five years—signals that Washington is pressing for a substantially larger Japanese role in sustaining the alliance’s day-to-day operating environment in Japan.

Why it matters

Japan’s host-nation support helps underwrite the U.S. military footprint that anchors deterrence in East Asia, making the outcome of these talks relevant to regional security and defense budgeting alike. A large increase could reshape Japan’s spending priorities and fuel political debate over the alliance’s costs. Observers will be watching whether Tokyo agrees to the near-tripling sought by Washington and what, if any, concessions accompany a higher payment.