UPSC Notes

Nuclear Proliferation and Denuclearisation

PYQs

6

Articles

1

Momentum

17

Phase IFoundation

Background

Overview

Critical for global security, international law, the role of international organizations, regional stability, and challenges to the non-proliferation regime.

Nuclear proliferation refers to the spread of nuclear weapons, fissionable material, and weapons-applicable nuclear technology and information to nations not recognized as "Nuclear Weapon States" under the Treaty on the Non-Proliferation of Nuclear Weapons (NPT). Denuclearisation efforts aim to eliminate existing nuclear arsenals and prevent further proliferation, often involving international treaties and inspections.

Phase IIStatic core

Facts & tables

Key facts

North Korea's Status

North Korea declared itself a nuclear weapons state and has conducted multiple nuclear tests, rejecting calls for its denuclearisation.

International Atomic Energy Agency (IAEA)

The IAEA is the world's central intergovernmental forum for scientific and technical cooperation in the nuclear field, working to prevent nuclear proliferation.

Treaty on the Non-Proliferation of Nuclear Weapons (NPT)

The NPT is a landmark international treaty whose objective is to prevent the spread of nuclear weapons and weapons technology.

Pyongyang's Stance

Pyongyang withdrew from the NPT in 2003 and reiterates its position that its status as a nuclear weapons state is irreversible.

Reference table

Static syllabus anchors

TypeReference
Conceptual areaInternational Relations

Reference table

Institutions & roles

BodyRole
International Atomic Energy Agency (IAEA)Monitors nuclear activities and promotes peaceful nuclear energy
Phase IIIExam lens

Prelims angle

Overview

Prelims angle: Conceptual understanding

Prelims angle: Policy measures

Quick revision

  • Nuclear proliferation: spread of nuclear weapons/technology.
  • Denuclearisation: efforts to eliminate nuclear arsenals.
  • IAEA: monitors nuclear activities, promotes peaceful use.
  • NPT: cornerstone treaty for non-proliferation.
  • North Korea: declared nuclear state, rejected denuclearisation.

High-confidence PYQs

Topic timeline

International Relations

North Korea warns of stronger response to U.S.-led drills

18 Sep 2026 · The article highlights North Korea's firm stance on strengthening its nuclear arsenal and rejecting denuclearisation calls, underscoring the ongoing challenge to global non-proliferation efforts.

Read article

Related topics

Practice writing on this topic

UPSC has asked 6 linked questions on Nuclear Proliferation and Denuclearisation in Mains. Write an answer to one — and get it evaluated.

UPSC Prelims PYQs on Nuclear Proliferation and Denuclearisation

Practice official previous year questions asked by UPSC related to this concept.

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