global geopolitics

Washington and Tokyo scramble to prevent Japanese fire sale of $1.14 trillion in US debt as currency intervention proves insufficient

The United States Treasury has effectively placed the Federal Reserve on notice, demanding the expansion of a little-known emergency lending facility as the deepening yen crisis threatens to trigger a fire sale of American government debt that would send borrowing costs soaring across the global economy (1-10). Treasury Secretary Scott Bessent, in a remarkably direct public intervention directed at the central bank, declared that the Fed’s Foreign and International Monetary Authorities repo facility must be upsized to accommodate Japan’s urgent need for dollar liquidity without forcing the country to liquidate its vast holdings of US Treasuries (8-12). “The FIMA Repo Facility is an important backstop,” Bessent wrote in a social media posting on Sunday. “We would encourage it to be upsized in the coming months” (1-5).

The public nature of Bessent’s demand represents an extraordinary breach of the conventional boundaries between the Treasury and an independent Federal Reserve, a development that has alarmed market observers and raised questions about the underlying severity of the crisis (8-12). “This is very unusual,” former Treasury official Mark Sobel told Reuters. “In my time, Treasury secretaries were reluctant to speak publicly about issues related to Federal Reserve monetary operations; if it was really necessary, they would communicate privately with the Fed chairman and handle it behind the scenes” (8-12). The public pressure comes as the yen has collapsed to 163.99 per dollar, its weakest level since 1986, triggering a joint US-Japan currency intervention on 31 July that marked the first coordinated operation between Washington and Tokyo since the 2011 earthquake (4-9-12).

The mechanics of the FIMA facility, established by the Federal Reserve in 2020 during the pandemic and made permanent in 2021, reveal the depth of Washington’s concern (1-5). The facility allows approved foreign central banks to pledge US Treasury holdings as collateral for dollar loans of up to $60 billion per counterparty, with terms extending to seven days. The Fed’s original documentation explicitly stated that the facility was designed to supply dollars “other than sales of securities in the open market,” anticipating exactly the situation now unfolding (4-13). Japan’s official reserves have already fallen from $1.41 trillion in February to $1.31 trillion at the end of May, with $77 billion of that decline occurring in May alone (4). The Bank of Japan has conducted multiple rounds of yen-buying intervention since 2022, totalling more than $300 billion, and recent operations in late July may have exceeded $60 billion in a single day (6-9).

The fundamental problem facing Washington is that the FIMA facility is available only to central banks and official institutions, not to Japanese banks, insurance companies, pension funds, or the multitude of leveraged carry trade participants that hold the vast majority of Japanese Treasury assets (4-9). The $1.14 trillion of Treasuries attributed to Japan in US data represents the total holdings of all Japanese entities, not merely the government portfolio, and the Federal Reserve’s facility can address only a fraction of the selling pressure that would emerge if Japanese private institutions began to liquidate their American assets (4-9). The yield on 30-year Treasuries has already climbed to its highest level since 2007, and the 10-year yield is approaching levels that President Trump’s administration has signalled would be politically unacceptable with midterm elections approaching (1-9).

The broader implications of the crisis extend far beyond Japan’s borders and threaten the entire structure of American financial hegemony that has persisted since the end of the Bretton Woods system. The dollar’s status as the world’s primary reserve currency has depended upon a network of foreign central banks, particularly those of Japan and China, that have been willing to accumulate vast holdings of US Treasuries in exchange for export-led growth and the stability that dollar convertibility provides (4-9). The energy crisis in West Asia, which has driven oil prices higher and exacerbated Japan’s current account deficit, has accelerated the yen’s decline and forced Tokyo to choose between defending its currency and preserving its Treasury portfolio (4-6). Japan’s nominal policy rate of one per cent remains deeply negative in real terms, the lowest in the developed world, while the Federal Reserve maintains rates at 3.50 to 3.75 per cent, creating an interest rate gap that makes the yen extraordinarily vulnerable (4-11).

Analysts have warned that expanding the FIMA facility may backfire by inviting markets to test the commitment of Washington and Tokyo to defend the yen (1-5). Evercore ISI cautioned that “plans to utilize FIMA could point to greater scope for FX intervention, we see a risk that the focus on a capped Fed repo facility could backfire by inviting markets to test the commitment of the US and Japan to strengthen the yen if doing so requires large sales of US Treasuries” (1-5). Derek Tang, an economist and co-founder of Monetary Policy Analytics, characterised Bessent’s manoeuvre as “really more about the posturing that this is the missing piece of the puzzle,” adding that Bessent was effectively saying “the US basically has infinite firepower to back this trade up. Don’t test us” (1-5).

The City of London, which operates as a distinct jurisdiction with its own legal and financial infrastructure, has reportedly been preparing for a full financial bloodbath, with senior figures indicating that the crisis was foreseen months ago (3). The interconnectedness of global bond markets means that any unwinding of the ties binding the world’s two largest bond markets and the second-most important exchange rate could ripple through the financial system in unexpected and dangerous ways (4-9). Jamie McGeever, a Reuters columnist, observed that “U.S. Treasuries, JGBs and the yen have all undergone periods of heavy stress in recent decades, but rarely have all three been under such pressure at the same time” (4-9). The “term premium” on 10-year Treasuries has spiked sharply, indicating that investors are demanding greater compensation for holding long-term American debt (4-9).

The fundamental contradiction at the heart of the crisis is that the United States cannot simultaneously wage war on the global energy order and maintain the financial system that depends upon that order. The disruption of energy flows from West Asia, which Washington has pursued as part of its broader strategy to contain China, has driven up energy prices for Japan and exposed the vulnerability of its current account position (4-6). The yen’s collapse is the clearest signal yet that the post-1971 floating-rate system is devouring itself, as the costs of American geopolitical ambitions are transmitted through the financial system to America’s largest creditor (4-13). Bessent’s demand for the Fed to expand the FIMA facility represents an acknowledgment that the existing tools are insufficient, but analysts have warned that these backstops rarely stop the crisis, they merely defer the reckoning and make it larger (1-5).

The situation facing Japan is described by one analyst as a “perfect storm”: extreme weakness in the yen, stress in Japanese government bonds, and credibility issues at both the Federal Reserve and the Bank of Japan (4-9). Japanese government bond yields have shot up to all-time highs, and the two-year and benchmark 10-year yields have hit their loftiest levels in three decades (4-9). The Japanese stock market has fallen roughly sixteen per cent in a month, and the country’s 14 to 15 per cent of zombie companies, firms whose profits do not cover their interest payments, face bankruptcy if borrowing costs rise further (4-11). The credibility stress scenario modelled by MSCI would see Japanese bonds lose seven per cent and equities sixteen per cent for yen-based investors, with dollar-based investors facing even steeper losses of seventeen per cent and twenty-six per cent as the yen collapses (11).

Authored By: Global GeoPolitics

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References

Bessent, Scott. 2026. Social media posting on FIMA facility expansion. X, 3 August.

BusinessWorld. 2026. “Bessent’s call to upsize US Federal Reserve’s foreign lending facility may not be risk-free.” 6 August (5).

Financial Times. 2026. “US sells euros to buy yen in rare intervention.” 31 July.

Kyodo News. 2026. “Japan may have spent 10 trillion yen on FX intervention in April-May.” 7 May (15).

McGeever, Jamie. 2026. “US yen intervention signals perfect storm rising in FX and bond markets.” Reuters, 4 August (4-9).

MSCI. 2026. “Scenario Analysis in Japan: Policy Normalization Meets Political Uncertainty.” February (11).

Reuters. 2026. “US Treasury’s Bessent: Reasonable for Fed to consider upsizing FIMA.” 4 August (1-10).

Reuters. 2026. “US will do ‘whatever it takes’ to support Japan after yen intervention, Bessent says.” 5 August (14).

Sobel, Mark. 2026. Comments on Treasury-Fed relations. Reuters, 4 August (8).

VietnamPlus. 2026. “Japan may have spent nearly $59 billion to support the yen.” 31 July (6).