Geopolitics · Strategy

India's Nuclear Doctrine: Credible Minimum Deterrence

By Siddhant Kumar·19 March 2026·7 min read

An Agni ballistic missile on its launcher
An Agni ballistic missile on its launcher. Photograph via Wikimedia Commons.

A nation that long campaigned against nuclear weapons became, in 1998, a declared nuclear power. How India reconciles that contradiction is written in its nuclear doctrine — a philosophy of deterrence built on restraint.

From Pokhran to power

India's first test came in 1974, styled 'peaceful.' In May 1998, the Pokhran-II tests made India an open nuclear-weapons state, drawing sanctions but ending ambiguity. Pakistan tested weeks later.[1]

Weapons meant to make war unthinkable, not to fight one.

No first use

A BrahMos missile in flight
Photograph via Wikimedia Commons.

India's declared doctrine rests on No First Use: nuclear weapons exist only to retaliate, never to strike first. Their purpose is to make war unthinkable, not to fight one — a posture of deterrence, not aggression.

Credible minimum deterrence

India seeks only enough capability to guarantee unacceptable retaliation — 'credible minimum deterrence' — rather than a vast arsenal. The promise of massive retaliation to any nuclear attack is meant to keep the threshold high.

The triad

To make retaliation credible, India has built a nuclear triad — weapons deliverable by land (the Agni missiles), air, and sea (ballistic-missile submarines) — ensuring that no first strike could disarm it.

Why it matters

India's doctrine is a study in strategic patience: power held in reserve, restraint as policy. It shapes the uneasy stability between India, Pakistan and China — three nuclear neighbours on one continent.

Sources & further reading

  1. "India and weapons of mass destruction," Wikipedia.

All images via Wikimedia Commons, used under the licences shown on each file page.

Siddhant Kumar

Poet and author of Guardians in the Gale, a collection of 21 poems on the armed forces, sacrifice, and remembrance.