ACA Executive Director Daryl Kimball provides an expert commentary on the now unconstrained strategic nuclear arsenals of the United States and Russia in the Bulletin of the Atomic Scientists.

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With the risks of new nuclear-armed States on the rise, the nuclear non-profileration regime is in danger of collapse. In 2026, Iran will continue to dominate the headlines as the most likely country to exit the Non-Proliferation Treaty (NPT) or develop nuclear weapons in violation of its treaty obligations.