CommentWhy nuclear arms debate in South Korea cannot be underestimated
U.S. allies must think outside the box to counter new threats from North Korea
Kim Jong Un, left, Yoon Suk Yeol and Joe Biden: Defense agreements are being reconsidered in the wake of Pyongyang testing an intercontinental Hwasong-18 ballistic missile. (Source photos by AP and KCNA via Kyodo)
HIROYUKI AKITA, Nikkei commentator
TOKYO -- With the mounting nuclear threat from North Korea, U.S. President Joe Biden and South Korean President Yoon Suk Yeol agreed in Washington on April 26 that the U.S. would enhance its extended deterrence to protect South Korea from possible nuclear attack by Pyongyang.