UPSC CSE 2026 Essay Paper Discussion

Comprehensive Nuclear-Test-Ban Treaty (CTBT)

Context:

United States under President Donald Trump had ordered preparations to restart nuclear weapons testing after a gap of 33 years, a move that could end the long-standing moratorium on nuclear tests observed since the Comprehensive Nuclear-Test-Ban Treaty (CTBT) of 1996.

UPSC Relevance:

International treaties

UPSC PYQ:

Q. What is/are the consequence/consequences of a country becoming the member of the ‘Nuclear Suppliers Group’? (2018)

  1. It will have access to the latest and most efficient nuclear technologies.
  2. It automatically becomes a member of “The Treaty on the Non-Proliferation of Nuclear Weapons (NPT)”.

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

About CTBT:

  • The Comprehensive Nuclear-Test-Ban Treaty (CTBT) bans all nuclear test explosions, whether for military or civilian purposes. 
  • The CTBT was negotiated at the Conference on Disarmament in Geneva in 1994.
  • The Treaty was opened for signature in 1996 to stop the development of new nuclear weapons and prevent upgrades to existing ones, supporting global efforts in non-proliferation and disarmament.

Status of the Treaty:

In accordance with Article XIV of the Treaty, it will enter into force after all 44 States listed in Annex 2 to the Treaty have ratified it.

Although the Treaty has not yet entered into force, it has made a significant contribution to international peace and security. It has helped to establish a strong global norm against nuclear testing and built confidence that any nuclear test explosion would be reliably detected.-https://www.ctbto.org/our-mission/the-treaty

why?

The treaty cannot formally enter into force until it is ratified by 44 specific nations. Eight of these nations have yet to ratify the treaty: China, India, Pakistan, North Korea, Israel, Iran, Egypt, United States.

Why USA again resuming Nuclear Test:

  • Scientific Reason:
    • To verify the reliability of existing nuclear arsenals and understand the effects of aging warheads.
  • Strategic Signalling:
    • To pressure rivals like Russia and China, both accused by U.S. intelligence of conducting low-yield nuclear tests.
  • Political Context:
    • Occurred amid strained U.S.–China relations and growing geopolitical competition.

PRELIMS POINTERS:

  • India’s nuclear tests: 1974 (Smiling Buddha), 1998 (Operation Shakti).
  • CTBT: Not yet in force; India, Pakistan, and North Korea are non-signatories.
  • NPT (1968): India is not a signatory due to its discriminatory nature.
  • First nuclear test (U.S.): July 1945, Trinity Test at Alamogordo.

Practice Question:

Q: Consider the following

  1. China
  2. India
  3. Pakistan
  4. North Korea
  5. Israel

How many of the above countries not ratified Comprehensive Nuclear-Test-Ban Treaty

a) only one

b) Only Three

c) Only Four

d) All Five

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Gaurav Tiwari

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Gaurav Tiwari

UPSC Content Team Head · Web Developer & Designer · AnantamIAS

Recognized as one of India’s best content marketers, Gaurav Tiwari is an SEO strategist, WordPress developer, and founder of Gatilab. He builds websites that load in under a second, creates content that ranks on Google’s first page, and develops WordPress plugins and tools used on thousands of live sites.

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