UPSC Syllabus Topic: GS Paper 3 -security And GS Paper 2- international relations
Introduction
Recently, U.S. President Donald Trump announced that the United States will resume nuclear weapons testing after a 33-year moratorium. The announcement followed Russia’s claim of a successful test of a nuclear-capable cruise missile and came the same day as Mr. Trump’s meeting with China’s President Xi Jinping. The details remain unclear, but the shift signals a major change in U.S. nuclear posture with wide global implications. Trump Drops a Bomb, on U.S. Nuclear Weapons Testing.

Consequence of Resuming Nuclear Weapons Testing by US
- Arms-race risk and alliance strain: Speculation of a renewed arms race grows. U.S. allies may doubt extended deterrence and take extra precautions, including revising defence plans.
- Erosion of 50 years of controls: The moratorium acted as restraint despite the CTBT not entering into force. Breaking it weakens non-proliferation habits built over decades, and others may cite the precedent to test.
- NPT’s “grand bargain” undercut: Nuclear states promised disarmament; non-nuclear states promised restraint. Testing appears the opposite of disarmament and invites non-nuclear states to re-evaluate their choices.
- Strain on existing and pending treaties
- New START cliff: The treaty capping U.S.–Russia strategic warheads expires in February 2026; testing would make a successor harder to negotiate and verify.
• CTBT and broader norms: While not in force, CTBT commitments and the wider normative fabric are pressured as others cite U.S. actions to proceed.
- Regional security ripple effects
Asia cascade: If China resumes testing, India may also consider testing. Pakistan would likely respond, raising instability in South Asia.
• Nuclear use as a ‘tactical’ option: Most leaders today did not see World War II or Hiroshima. This distance can make ‘tactical’ nuclear options seem more acceptable.
- Environmental downsides: The U.S. already relies on simulations and non-explosive validation. Underground tests risk leakage and groundwater harm, and site readiness would take time.
International Treaties and Initiatives
- Treaty on the Non-Proliferation of Nuclear Weapons (NPT): Signed in 1968 and in force since 1970, the NPT is the cornerstone of non-proliferation efforts.
Three-part bargain:
- States without nuclear weapons agree not to acquire them.
- The five nuclear-weapon states (China, France, Russia, United Kingdom, and United States) agree to pursue disarmament.
- All states agree to cooperate on the peaceful uses of nuclear energy.
- IAEA Safeguards: Non-nuclear weapon states that are NPT members have legally binding safeguards agreementswith the IAEA to verify that nuclear materials are not diverted for military purposes.
- Comprehensive Nuclear-Test-Ban Treaty (CTBT): This treaty bans all nuclear explosions, but has not yet entered into force because not all required states have ratified it.
- Treaty on the Prohibition of Nuclear Weapons (TPNW): This treaty, which entered into force in 2021, prohibits states from developing, testing, producing, acquiring, possessing, stockpiling, using, or threatening to use nuclear weapons.
- Inter-Parliamentary Union (IPU): The IPU promotes the role of parliaments in achieving a nuclear-weapons-free world by urging them to work with their governments to eliminate nuclear weapons from security doctrines.
- Non-Proliferation and Disarmament Initiative (NPDI): A group of 12 countries, established by Australia and Japan, that promotes practical actions to advance NPT objectives. It focuses on transparency, strengthening the review process, and developing verification measures.
- UN Security Council Resolution 1540: This resolution requires all states to take and enforce effective measures to prevent the proliferation of nuclear weapons and their materials to non-state actors.
- New START: It is a U.S.–Russia treaty limiting strategic nuclear arms, called Measures for the Further Reduction and Limitation of Strategic Offensive Arms, signed in Prague on 8 April 2010 and entered into force on 5 February 2011.
Way forward
- No-First-Use Pledge: At the NPT review, states should adopt a binding no-first-use commitment to lower alert levels and rebuild trust.
2. Focused Great-Power Talks: The U.S., Russia, and China should open trilateral arms-control negotiations before New START expires, creating a template others can join.
3. Reinforce Testing Restraint: All nuclear states should reaffirm the moratorium and expand transparency on subcritical experiments to prevent misinterpretation.
4. Assurance and Crisis Channels: Strengthen consultations and hotlines to reduce fear, deter adjustments, and manage incidents.
5. Verification and Public Accountability: Invest in monitoring tools and reporting to the UN, restoring confidence in the non-proliferation bargain.
Conclusion
Resuming U.S. nuclear testing risks eroding core norms, spurring competitive tests, and destabilising multiple regions. It weakens the NPT bargain, complicates New START follow-ons, and invites a costly arms race. The safer path is renewed dialogue, verifiable limits, and a collective No-First-Use pledge—rebuilding credibility before the window for prudent restraint closes.
Question for practice:
Examine the likely impacts of a U.S. resumption of nuclear weapons testing on the CTBT/NPT framework, New START negotiations, and security dynamics in Asia.
Source: The Hindu




