K-4 Missile & the Sea Component of India’s Nuclear Triad

India’s successful K-4 missile test from a nuclear-powered submarine marks a decisive leap in the country’s strategic deterrence posture. This Global Eye Intelligence brief delivers a deep-dive assessment of India’s sea-based nuclear capability—the most discreet and survivable pillar of the nuclear triad—explaining why it fundamentally alters regional and global security calculations.

The report examines the evolution of India’s submarine-launched ballistic missile program, the operational role of Arihant-class SSBNs, and how true second-strike capability strengthens deterrence under the doctrine of Mutual Assured Destruction. It also evaluates India’s growing maritime focus across the Indian Ocean Region, the strategic implications for China and Pakistan, and the long-term balance of power in the Indo-Pacific.

Beyond platforms and missiles, this analysis connects doctrine, technology, and geopolitics—highlighting why undersea deterrence has become the keystone of India’s national security architecture. For defence analysts, policymakers, investors in defence ecosystems, and strategic affairs professionals, this brief offers clarity on what quietly changed—and why it matters now.

Strategic shifts don’t announce themselves—they surface only in moments like these. Those who track them early stay ahead. Follow Global Eye Intelligence to access foresight-driven defence and geopolitical intelligence before it becomes mainstream consensus.