What is the common examiner trap about Security & Defence in UPSC exams?

They may ask for the ranking order (USA > Russia > China > France > UK > India > Pakistan > Israel > North Korea) or swap the warhead numbers of India and Pakistan (190 vs 170). Another trap is asking which two countries hold ~83% of warheads (Russia & USA), not just 'most'.

What should UPSC aspirants remember about Security & Defence for Prelims?

1. Target this Data: Total warheads: 12,187; India: 190 (Rank 6); Pakistan: 170. 2. Target this Nodal Body: Stockholm International Peace Research Institute (SIPRI). 3. Target this Report: SIPRI Yearbook 2026.

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News 26 of 28

SIPRI Yearbook 2026: Global Nuclear Arsenal at 12,187 Warheads; Russia Leads with 5,420, India Ranks 6th with 190

Q: Which international institute publishes the annual assessment on global armaments and disarmament known as the SIPRI Yearbook?

Stockholm International Peace Research Institute (SIPRI), The article explicitly states that the Stockholm International Peace Research Institute (SIPRI) launched its annual assessment. While FAS is mentioned for last year's data, the primary publisher of the Yearbook is SIPRI.

Q: Consider the following statements regarding the SIPRI Yearbook 2026 findings: 1. The total number of nuclear warheads globally has increased compared to the previous year. 2. Russia and the United States together possess approximately 83 percent of all stockpiled nuclear warheads. 3. According to the report, China and India never keep nuclear warheads on missile alert during peacetime. Which of the statements given above is/are correct?

Only 2, Statement 1 is incorrect: The article states there is a decrease of 144 warheads compared to last year's data. Statement 2 is correct as per the report. Statement 3 is incorrect: The article mentions that China and India are 'believed to occasionally keep a limited number of missile mounted warheads deployed even during peacetime'.

Q: As per the SIPRI Yearbook 2026, what is the estimated total number of nuclear warheads possessed by all nine nuclear-armed countries in early 2026?

12,187, The article's data table clearly states the total is 12,187 warheads. The other options are close distractors; 12,045 is last year's total (12,187 - 144 = 12,043 approx), but the exact figure from the table is 12,187.

Q: What is a key implication of the finding that the share of global nuclear warheads held by Russia and the USA is 'considerably shrinking'?

It signals the emergence of a more multipolar global nuclear order., The article states the share is shrinking 'due to growth in the world’s other arsenals.' This means other nuclear-armed states are increasing their stockpiles, reducing the relative dominance of the two traditional superpowers and leading to a more multipolar distribution of nuclear capability.

Security & Defence Intl. RelationsHIGH

Target:UPSC GS-IIIMPSCSSC GATeachingPrelims HighMains MediumStatic GK Link

10 Jun 2026

~2 min

Source: Indian Express

Key Data:Total warheads: 12,187Russia: 5,420 warheadsUSA: 5,042 warheadsIndia: 190 warheadsPakistan: 170 warheads

Bodies:SIPRI

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~2 min · Quick mode

What This Article Covers

1.SIPRI's 2026 assessment reports a total of 12,187 nuclear warheads globally, a decrease of 144 from the previous year.

2.Russia and the USA hold ~83% of all stockpiled warheads, but their share is shrinking due to arsenal growth in other nations.

3.China and India are noted to occasionally keep a limited number of missile-mounted warheads deployed even during peacetime.

The Big Picture

Prelims · HighMains · Medium

The SIPRI Yearbook 2026 provides a critical update on global nuclear arsenals, a recurring theme in GS Prelims and Mains (Security & IR). For exam aspirants, memorizing the ranking and exact warhead numbers of key countries like India, Pakistan, and China is essential for tackling direct factual questions and analyzing strategic stability in South Asia.

Exam Lens

Quick Exam Facts From News

Total Nuclear Warheads (2026)12,187

India's Rank & WarheadsRank 6, 190 warheads

Pakistan's Warheads170

Report PublisherStockholm International Peace Research Institute (SIPRI)

1-Minute Revision

›Total Nuclear Warheads (2026): 12,187
›India's Rank & Warheads: Rank 6, 190 warheads
›Target this Data: Total warheads: 12,187; India: 190 (Rank 6); Pakistan: 170.
›Target this Nodal Body: Stockholm International Peace Research Institute (SIPRI).
›Target this Report: SIPRI Yearbook 2026.

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News Snapshot

📊

Global Stockpile

The global nuclear arsenal stands at 12,187 warheads as of early 2026, according to SIPRI.

⚔️

Dominant Duopoly

Russia (5,420) and the USA (5,042) together possess approximately 83% of all stockpiled nuclear warheads.

🌏

South Asian Dynamics

India (190 warheads) and Pakistan (170) continue to enhance their nuclear arsenals, impacting regional strategic stability.

Detailed Analysis & Strategic Depth

Context / Background

The Stockholm International Peace Research Institute (SIPRI) annually publishes its Yearbook, a key source for data on armaments and international security. This report is a standard reference in global strategic studies and is frequently cited in UPSC questions related to defence, security, and India's strategic posture. The data highlights the ongoing modernisation and expansion of nuclear capabilities worldwide, despite global disarmament rhetoric.

Core Analysis & Implications

The report underscores a paradoxical trend: a marginal decrease in the total number of warheads (-144) coexists with qualitative and quantitative enhancements by all nine nuclear-armed states. The shrinking share of the US-Russia duopoly (from over 90% historically to ~83%) signals a multipolar nuclear order. For India, being ranked 6th with 190 warheads, behind China's 620, frames the strategic calculus in Asia. The note that China and India occasionally keep warheads on peacetime alert adds a layer of complexity to crisis stability and underscores the importance of nuclear confidence-building measures (CBMs).

Future Outlook / Way Forward

The trajectory points towards continued vertical proliferation (improving existing arsenals) rather than horizontal proliferation (new countries acquiring weapons). This will keep issues like No First Use (NFU) policy, ballistic missile defence, and arms control negotiations (e.g., Fissile Material Cut-off Treaty - FMCT) highly relevant for Mains answers. India's position will be scrutinized in the context of its commitment to global nuclear disarmament while maintaining a credible minimum deterrent.

Key Facts at a Glance

Total Nuclear Warheads (2026)12,187

India's Rank & WarheadsRank 6, 190 warheads

Pakistan's Warheads170

Report PublisherStockholm International Peace Research Institute (SIPRI)

You've read the full analysis. Now test your understanding.

Practice exam-style questions based on this article.

Q1Static LinkageEasyUPSC, SSC, State PSC

Which international institute publishes the annual assessment on global armaments and disarmament known as the SIPRI Yearbook?

Q2Statement-basedHardUPSC, SSC

Consider the following statements regarding the SIPRI Yearbook 2026 findings:

1. The total number of nuclear warheads globally has increased compared to the previous year.

2. Russia and the United States together possess approximately 83 percent of all stockpiled nuclear warheads.

3. According to the report, China and India never keep nuclear warheads on missile alert during peacetime.

Which of the statements given above is/are correct?

Q3Data-centricMediumUPSC, Banking, SSC

As per the SIPRI Yearbook 2026, what is the estimated total number of nuclear warheads possessed by all nine nuclear-armed countries in early 2026?

Q4Application/ImpactMediumUPSC, SSC

What is a key implication of the finding that the share of global nuclear warheads held by Russia and the USA is 'considerably shrinking'?

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SIPRI Yearbook 2026: Global Nuclear Arsenal at 12,187 Warheads; Russia Leads with 5,420, India Ranks 6th with 190

Exam Lens

Quick Exam Facts From News

1-Minute Revision

News Snapshot

Global Stockpile

Dominant Duopoly

South Asian Dynamics

Detailed Analysis & Strategic Depth

Context / Background

Core Analysis & Implications

Future Outlook / Way Forward

Prelims Flashpoints

Key Facts at a Glance