Warming relations between the two pariah states could foster a mutually beneficial weapons and technology trade and raise tensions on the Korean Peninsula.

The United States and South Korea should pursue an expanded nuclear agreement that supports the production of civilian nuclear power and enhances extended deterrence against the North Korean threat. …

North Korea seeks to exploit major-power rivalries and weaken U.S.-South Korea ties with its ramped-up missile testing. Already, it has ratcheted up nuclear tensions on the Korean Peninsula to their …

Presidents Biden and Yoon pledged to deepen and broaden the scope of the U.S.-South Korea alliance, but their success could depend on how China, Japan, and North Korea respond.

Kim Jong-un’s first ten years as North Korea’s leader were marked by economic failures, halting nuclear diplomacy, and a steady ramp-up of military power.