President Trump called the first coordinated US–Japan yen purchases in decades a
“signal of friendship.” Treasury Secretary Bessent said the Trump administration
will “deliver on commitments to trusted partners.” Analysts warn Washington’s
intervention is unlikely to be free: they say support for the yen — lifted from
near 40‑year lows — may be tied to US strategic aims including bolstering Prime
Minister TAKAICHI amid weak polls, pressing Japan to follow through on a
previously pledged $550bn investment package into the US and to yield more in
trade talks. Bessent has voiced worry about spillovers to the $31trn US Treasury
market; he has identified the 10‑year yield as his key gauge, and the 10‑year
yield hit the highest level of his tenure on Friday, the same day as the yen
intervention.