Ex-BOJ Official: U.S. and Japan Will "Certainly" Intervene Again to Support Yen

After an unprecedented U.S.-Japan joint intervention to support the yen in early August 2026, a former Bank of Japan official said both countries would "certainly" act again if the yen resumes sliding. Currency authorities typically refuse even to confirm past interventions. The former official's certainty puts traders on notice that renewed yen weakness may draw coordinated force.