She explained that aggressive Japanese intervention funded through Treasury sales could increase volatility in the U.S. bond market and ultimately destabilize the dollar. President Donald Trump described the intervention as both a gesture of support for Japan and a measure aimed at preserving global financial stability. Analysts also noted that Washington has long argued the yen is significantly undervalued, giving Japanese exporters an advantage in global trade. The joint warning from both governments that they "will not hesitate" to intervene again has also increased the risks for investors betting against the Japanese currency. More importantly, he believes currency intervention cannot reverse the structural forces weighing on the yen.