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Nuclear Submarines

Virginia-class Submarines North Korea US Navy South Korean Navy Khabarovsk South Korea North Korean Submarine Development INS Aridhaman Ballistic Missile Submarines Indo-Pacific Security

PNAS Study Confirms Intermittent Radiation Plumes From Sunken Soviet Sub K-278 Komsomolets

Researchers warn of a long-term risk from a corroding reactor requiring sustained monitoring.

Study Confirms Radioactive Plumes From Sunken Soviet Sub’s Reactor in Norwegian Sea

Reports Place HMS Anson in Arabian Sea Within Strike Range of Iran

France’s Fourth Barracuda-Class Submarine De Grasse Begins Sea Trials

India Expects to Commission Third Arihant-Class SSBN INS Aridhaman by April–May

India Set to Commission INS Aridhaman, Third Arihant-Class SSBN, by April–May 2026

IISS: China Outpaces U.S. in Nuclear-Sub Launches as New SSN Appears

Australia Commits A$3.9 Billion to Launch Nuclear-Submarine Shipyard at Osborne

North Korea Shows Near-Complete 8,700-Ton Nuclear‑Propulsion Submarine Under Construction

North Korea Unveils Images of 8,700-Ton Nuclear Submarine as Kim Oversees Air-Defense Missile Test

North Korea Shows Nuclear-Powered Submarine as Kim Orders 2026 Missile Production Surge

North Korea Unveils Images of 8,700-Ton Nuclear Sub Under Construction as Kim Oversees Long-Range Air-Defense Test

KCNA: Kim Jong Un Inspects 8,700-Ton Nuclear Sub Project, Plans Naval Reorganization

India Says Third Nuclear Ballistic Submarine INS Aridaman Nears Commissioning

South Korea, U.S. Finalize Pact to Build Nuclear-Powered Submarines

U.S. and South Korea Finalize Deal Authorizing Seoul to Build Nuclear-Powered Attack Submarines

U.S.–South Korea Nuclear-Sub Plan Hits Snag Over Where to Build and How to Fuel

U.S.–South Korea Summit Fact Sheet Still on Hold as Security Text Is Reworked

Russia Unveils Khabarovsk Submarine Built for Poseidon Nuclear Torpedoes

North Korea Fires Ballistic Missile Into Sea of Japan, Seoul Says