Moscow has a variety of classes of submarines, including Delta-class, Kilo-class, Sierra-class, Victor-class, Akula-class, and Borei-class. The latest Russian submarine, a Borei-class Imperator ...

The recent missile drill follows the test firing of two ICBMs by another sub of Russia’s Pacific Fleet in September.

The Borei-class is the first-generation ballistic missile submarine that was built in the post-Soviet era. The Delta-IV, the ...

The Korean Central News Agency, or KCNA, didn't provide details on the submarine, but said Kim was briefed on its construction. The naval vessel appears to be a 6,000-ton-class or 7,000-ton-class ...