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Nuclear treaty review opens amid war, testing threats, failed consensus

After repeated failures, nations will try again to agree on disarmament, nonproliferation and peaceful nuclear energy.

Izumi Nakamitsu, the U.N. undersecretary-general and high representative for disarmament affairs, briefing reporters at U.N. headquarters in New York about the th 11th NPT Review Conference to be held from April 27 to May 22, 2026. (U.N. Web TV)

Countries gathered at U.N. headquarters for a monthlong review of the Nuclear Nonproliferation Treaty, opening a high-stakes test of the world’s main nuclear arms control framework at a time of renewed testing threats, major-power tensions and repeated failures to reach consensus.

The 2026 Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons, which opened Monday in New York, will assess implementation of the treaty across its three pillars: nuclear disarmament, nonproliferation and the peaceful use of nuclear energy.

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