Key Points - Russia's improved Kilo-class (Project 636.3) diesel-electric submarines are considered "more deadly than ever," primarily due to their armament with the versatile 3M-54 Kalibr family of ...

Summary and 4 Points You Need to Know: Russia’s Kilo-class submarines have been in service since the 1980s, proving cost-effective and versatile. Despite their age, they remain a vital part of ...

Key Points and Summary on Lada-Class Submarine - Russia's Lada-class diesel-electric submarines, intended to replace the venerable Kilo-class, represent a significant technological leap but have been ...

Summary and Key Points You Need to Know: Since the beginning of the war in February 2022, Ukraine estimates that about 15 Russian warships, or roughly a third of Russia’s Black Sea Fleet, have been ...

Russia’s Kilo-class and Yasen-class submarines are likely considered as a massive, high-tech threat by the Pentagon and China’s growing fleet of Jin-class ballistic missile submarines are acquiring ...

The Security Service of Ukraine (SBU) said it disabled a Russian surveillance plane at an airfield before launching its claimed drone strike on a Kilo-class submarine. The SBU last week released ...

The Russian submarine shadowed by the Swedish Gripens was transiting the Kattegat, a strategic waterway linking the Baltic approaches with the North Sea system. Although the spotlight is currently on ...

Images released by the SBU on 15 December 2025 showed the moment of the purported UUV explosion, with the Kilo II submarine seen just to the left of the detonation. (Security Service of Ukraine) The ...

July 24, 2024: The Russian Black Sea fleet originally had four Kilo-Class diesel-electric submarines. One Kilo was put out of action by a September 2023 air strike on the Crimean port of Sevastopol, ...