The United States and Japan have confirmed they intervened jointly in foreign exchange markets to halt the yen's decline, according to RFI. The move was announced on Monday, August 3, 2026, and marks a rare coordinated effort by Washington and Tokyo to support the Japanese currency.
US President Donald Trump said Japan had asked for American assistance, per RFI. The intervention follows the yen's fall to a nearly 40-year low against the dollar, a level that prompted Japanese authorities to seek outside help, the report said.
Japanese officials confirmed the joint action and signaled they may step in again if needed, according to Xinhua. The announcement triggered a sharp rebound in the yen, which strengthened to its best level against the dollar in months, as reported by Chinese financial outlet Tonghuashun.
The joint intervention is notable because the US has historically been reluctant to weaken the dollar through coordinated market action. Analysts cited by Sina Finance suggested Washington had its own reasons for joining Tokyo, though the report did not specify what those reasons were. One Chinese commentary outlet described the US move as offering Japan a "poisoned bone," implying the assistance came with strings attached.
The yen's slide had been driven by the wide interest rate gap between Japan and the US, a factor that made the dollar more attractive to investors. The intervention is intended to push back against that trend, at least temporarily.
What to watch next is whether Tokyo follows through on its warning of additional action if the yen resumes its decline, and how long the joint effort holds in the face of market pressure.
