North Korea’s nuclear capabilities have reached a point where traditional diplomatic approaches centered on denuclearization are no longer viable, according to a new analysis published in Foreign Affairs. The article, written by Dr. Victor Cha and released on April 21, 2026, argues that the United States and its allies must shift strategy toward establishing a “cold peace” – a managed relationship that acknowledges North Korea’s nuclear reality while preventing further escalation.
The piece traces the evolution of the North Korean nuclear threat from the early 1990s, when U.S. Officials first recognized Pyongyang’s intent to develop nuclear weapons despite having only enough fissile material for one or two crude bombs at the time. Over the subsequent three and a half decades, North Korea has vastly exceeded even the most pessimistic projections of its nuclear advancement.
According to the analysis, North Korea now possesses approximately 50 nuclear weapons and has stockpiled sufficient plutonium and highly enriched uranium to produce an additional 40 to 50 bombs. The country has developed nearly 20 distinct delivery systems, including long-range intercontinental ballistic missiles capable of reaching targets in the United States. Pyongyang is actively pursuing sea-based launch capabilities from nuclear submarines, which would enhance its second-strike capacity and complicate preemptive strike scenarios.
The report notes that North Korea has conducted six nuclear tests and carried out more than 300 tests of various delivery systems. Leader Kim Jong Un aims to build a nuclear arsenal comparable in size to those of France or the United Kingdom, each of which maintains over 200 nuclear weapons, and the assessment indicates he is making substantial progress toward that goal.
The article contends that after seven U.S. Presidential administrations have pursued strategies based on complete, verifiable, and irreversible denuclearization (CVID), it is time to abandon this framework as unrealistic. Instead, Dr. Cha proposes a “cold peace” model – a pragmatic approach short of full normalization that focuses on managing the existing threat through deterrence, communication channels, and crisis prevention mechanisms.
This shift in strategy would require accepting North Korea’s status as a nuclear-armed state while working to prevent further proliferation, limit advancements in delivery technology, and reduce the risk of accidental or miscalculated conflict. The approach would emphasize stability over transformation, seeking to create a predictable, if tense, equilibrium similar to Cold War-era arms control arrangements.
The analysis was published in the May/June 2026 issue of Foreign Affairs and became available to subscribers on April 21, 2026. It represents one of the most recent high-profile assessments of North Korea’s military capabilities and the evolving strategic challenge it poses to Northeast Asian security and U.S. Defense planning.