# Is coordinated Japan-US currency intervention a ‘product of the alliance’? What the US Treasury is truly worried about will determine the yen’s staying power

https://mins.news/en/item/12534

- Toyo Keizai, 2026-08-03 21:00 UTC
- Economy
- Original: https://toyokeizai.net/articles/-/953607?utm_source=rss&utm_medium=http&utm_campaign=link_back

> As a historic yen appreciation advances, Japan and the United States have carried out coordinated currency intervention for the first time in 15 years. Washington’s move to seriously address the yen’s weakness reflects a strong sense of crisis over rising US Treasury yields and a shift away from the dollar. The central question is whether the yen’s upward trend can continue. The report examines the concerns driving the US Treasury and their implications for the currency’s durability.

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