India’s K-4 submarine-launched ballistic missile (SLBM)

India’s Nuclear Triad Achieves Credibility: Strategic Forces Command Successfully Test-Launches Nuclear-Capable K-4 SLBM from INS Arighat, Rendering K-15 Obsolete in Deterrence

India has taken a significant step in strengthening its nuclear deterrence with the successful test launch of the K-4 submarine-launched ballistic missile (SLBM) on December 23, 2025. Multiple credible sources, including The Times of India, confirmed that the missile was...
K-4 submarine-launched ballistic missile (SLBM)

India Strengthens Nuclear Triad with Successful K-4 SLBM Test from INS Arihant

India has achieved a major strategic milestone with the successful test of its K-4 submarine-launched ballistic missile (SLBM) from the nuclear-powered ballistic missile submarine INS Arihant in the Bay of Bengal on 23 December 2025. The launch, conducted from a...