In a significant move to stabilize the slumping Japanese yen, Japan's government has undertaken one of the most dramatic foreign exchange market interventions in decades. The yen had hit a 40-year low against the US dollar, prompting this decisive action.

Adding to the support, US President Donald Trump has lent the US financial might to the historic intervention. He characterized this backing as a "signal of friendship," indicating a coordinated effort to prevent a larger crisis.

This intervention underscores the severity of the yen's decline and the commitment from both Japanese authorities and the US administration to restore stability to the currency markets. The involvement of President Trump highlights the international implications of the yen's weakness.