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Why 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)

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.

Extended deterrence means the U.S. deters attacks on its allies by asserting its capability and willingness to retaliate, including with nuclear weapons, if an enemy attacks one of its allies.

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