Nuclear weapons: old dilemmas, new dangers

Nuclear weapons have posed a challenge to international security since 1945. Today that challenge looms as large as ever.

The Intermediate-Range Nuclear Forces Treaty has been under severe threat for many years and even more so today.

North Korea's nuclear weapons threaten the global security order and our multilateral system, and Iran's nuclear activities could form a potential threat. Implementation of arms control treaties is being challenged as well.

The way these prob...