An Ohio-class nuclear submarine, belonging to the United States Navy, departed from HM Clyde Naval Base in Faslane on the west coast of Scotland on Friday afternoon after a brief visit to the military facility.
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British Marines emerge from submarine in the Arctic and simulate secret attack
British Royal Marines carried out a daring infiltration operation in the far north of the planet by emerging from the icy depths of an Arctic fjord aboard a German submarine during a major NATO military exercise.
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Nuclear submarine De Grasse begins sea trials in France
The nuclear submarine De Grasse, the fourth unit of the French Navy’s Barracuda class, has begun its first sea trials, known as “Alpha Trials,” departing from the Naval Group shipyard in Cherbourg.
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Australia allocates US$220 million to AUKUS to accelerate nuclear submarine program
AUKUS has announced a payment of US$220.1 million to the United Kingdom for the acquisition of long-lead items intended for Australia’s future conventionally armed, nuclear-powered submarines.
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Denmark evacuates sailor from US attack submarine near Greenland
Denmark carried out a medical evacuation from a US Navy nuclear-powered attack submarine operating near Greenland, the website UK Defence Blog reported.
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Germany Transfers Technology to Israel in Next-Generation Submarine Project
The Israeli Ministry of Defense, Elbit Systems and Germany’s ThyssenKrupp Marine Systems (TKMS) have officially inaugurated a new production line dedicated to manufacturing structural elements for submarines.
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China Emerges as the World’s Second-Largest Nuclear Submarine Power
China has surpassed Russia in the number of nuclear-powered submarines and has moved into second place globally in this strategic segment, closing the gap with the United States and reshaping the balance of undersea deterrence in the Indo-Pacific.
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China surpasses Russia in nuclear-powered submarine fleet
China has surpassed Russia as the world’s second-largest operator of nuclear-powered submarines, positioning itself just behind the United States.
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Autonomous submarine XV Excalibur delivered to the Royal Navy of the United Kingdom
The United Kingdom’s Submarine Delivery Agency (SDA) announced the delivery of the autonomous submarine XV Excalibur to the Royal Navy on December 11, 2025.
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North Korea unveils first complete images of its nuclear missile submarine
On December 24, 2025, North Korean state media released the first complete images of a “strategic nuclear guided-missile submarine” under construction, with an estimated displacement of 8,700 tons.
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French Suffren-class nuclear submarine arrives in Scotland and strengthens naval cooperation
A nuclear-powered attack submarine of the Suffren class, operated by the French Navy, docked at HM Naval Base Faslane in Scotland, reinforcing the allied presence at one of the United Kingdom’s main naval facilities.
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Japanese Navy Decommissions Submarine Udzushio After 25 Years of Service
The Japan Maritime Self-Defense Force held an official flag-lowering ceremony for JS Udzushio, an Oyashio-class submarine, marking the end of 25 years of active service in the Japanese fleet.
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