Russia Withdraws From Cold War Plutonium Deal With US

Russia's State Duma voted to exit the 2000 agreement requiring both nations to dispose of 34 tonnes of weapons-grade plutonium each.

NEWS BRIEF

Russia’s lower house of parliament has approved a withdrawal from the landmark Plutonium Management and Disposition Agreement (PMDA) with the United States, a pact designed to eliminate 34 tonnes of weapons-grade plutonium from each country’s Cold War stockpiles. Moscow cited “anti-Russian steps” by Washington that it claims have undermined the agreement’s original strategic balance.

WHAT HAPPENED

  • Russia’s State Duma voted to exit the 2000 agreement requiring both nations to dispose of 34 tonnes of weapons-grade plutonium each.
  • The pact, which entered force in 2011, aimed to convert plutonium into safer forms like mixed oxide fuel for nuclear reactors.
  • Russia suspended implementation in 2016, citing U.S. sanctions, NATO expansion, and disputes over disposal methods.
  • Moscow claims Washington violated terms by changing disposal methods without Russian consent.

WHY IT MATTERS

  • The withdrawal signals further deterioration in U.S.-Russia nuclear cooperation amid ongoing tensions over Ukraine and sanctions.
  • Abandoning the pact leaves massive plutonium stockpiles, enough for thousands of warheads, without a verified disposal framework.
  • The move reflects Moscow’s broader strategy of leveraging nuclear agreements as bargaining chips in geopolitical disputes.
  • It raises nonproliferation concerns by halting a key mechanism for reducing weapons-grade material.

IMPLICATIONS

  • Arms Control Erosion: The decision further weakens the already fragile network of U.S.-Russia nuclear agreements.
  • Strategic Stability: Both nations may face increased pressure to modernize nuclear arsenals rather than reduce stockpiles.
  • Nonproliferation Setback: The collapse of PMDA could hinder global efforts to secure and eliminate dangerous nuclear materials.
  • Diplomatic Isolation: Russia’s withdrawal may complicate future cooperation on Iran, North Korea, and other nuclear issues.

This briefing is based on information from Reuters.

Rameen Siddiqui
Rameen Siddiqui
Managing Editor at Modern Diplomacy. Youth activist, trainer and thought leader specializing in Sustainable Development, Political Economy, and Development Justice.

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