Washington’s request that Seoul pay more for their military alliance has heightened tensions between longtime allies and poses risks for regional security.

North Korea will likely continue to develop its nuclear program, but Kim Jong-un could return to negotiations if the United States makes concessions.

Last week’s summit between U.S. President Joe Biden and South Korean President Moon Jae-in aimed to bolster the alliance across a range of issues, with notable moves on supply chain resiliency and No…

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.

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.