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We are deeply concerned by Russia’s planned action to withdraw its ratification of the Comprehensive Nuclear-Test-Ban Treaty (CTBT). Unfortunately, it represents a significant step in the wrong direction, taking us further from, not closer to, entry into force. Russia’s action will only serve to set back confidence in the international arms control regime. We appreciate the similar statements of concern expressed by many other States in recent weeks about this action.

We will continue to emphasize the irresponsibility of Russia’s recent rhetoric regarding nuclear weapon explosive testing and the CTBT. This continues Moscow’s disturbing and misguided effort to heighten nuclear risks and raise tensions as it pursues its illegal war against Ukraine.

Russian officials say Russia’s planned move to withdraw its ratification does not mean that it will resume testing, and we urge Moscow to hold to those statements. The United States remains committed to achieving the entry into force of the CTBT, and we reiterate our commitment to our zero-yield nuclear explosive testing moratorium, which has been in place for 30 years. It is essential that we preserve the global norm against nuclear explosive testing.

U.S. Department of State

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