Moscow has secretly built an undersea surveillance system, Harmony, to track US submarines near Russian naval zones.

Russia secretly used front companies to buy Western technology and erect a surveillance net in the Arctic where its submarines operate, an investigation shows.

Moscow had included funds in the draft federal budget for the recovery of the nuclear submarines from the Arctic seabed.

"The armed forces' jet fighters and warships met up with the submarine .... and are now following it," Sweden's armed forces said.

While the exercise only involved two subs, the warning was clear: America should contemplate the prospect of confronting a China-Russia alliance.

At the end of September, a Telegram channel known for its network of Russian intelligence sources reported that a Black Sea fleet submarine had run into “serious technical problems” while on a

September 28, 2025: Recently, the Russian Northern Fleet received another Borei-A class SSBN, making eight of these nuclear-powered ballistic missile submarines in service. The Russian Navy is more than halfway through its SSBN upgrade and refurbishment ...

A former senior Nato commander and naval expert has told Westminster politicians that a united Ireland would pose a strategic threat. The loss of the protection afforded by the North would deepen the threat to Britain from Russia and China, Rear Admiral Chris Parry told MPs and members of the House of Lords in a briefing on Wednesday.

Nuclear-powered submarines use some of the most advanced military technology in the world. These are the ones that are a cut above all the rest.

Russian Secrets, a new cross-border investigation, reveals the shadowy procurement network behind Russia’s surveillance program Harmony.