Biden and South Korea take steps to deter North Korea's nuclear threat.

President Biden has warned that any nuclear attack by North Korea against the US or its allies would result in the end of the regime. Biden made the comments during a state visit by South Korean President Yoon Suk Yeol, where the two leaders agreed to formalize steps to deter North Korea. The US plans to deploy a ballistic missile submarine to the western Pacific for the first time since the 1980s, followed by other military hardware. The "Washington Declaration" establishes a consultative group to discuss how to deter North Korea from using its nuclear weapons and plan responses to any actions.