Xinhua News Agency, Moscow, March 19 (Reporter Wu Gang) Russian Defense Ministry sources revealed on the 19th that the number of submarines owned by the Russian army before the end of this year will reach about 80.

Russian News Agency today quoted Russian Defense Ministry sources as saying that at present, there are more than 70 submarines included in the Russian military battle sequence. According to the plan, before the end of this year, the Russian army will be newly equipped with 4 nuclear submarines and 1 conventionally-powered submarine, including 2 "Beifeng" -class strategic nuclear submarines, 2 "ash tree" -class attack nuclear submarines, and 1 " "Warsaw woman" class diesel electric submarine.

The source also said that the Russian Defense Ministry has been advancing the work of adding new submarines and upgrading existing submarines in order to improve the Russian submarine force's ability to perform comprehensive tasks.

The "God of North Wind" class strategic nuclear submarine is Russia's backbone of strategic nuclear deterrence at sea. Each "God of North Wind" class nuclear submarine can carry 16 "Blava" intercontinental ballistic missiles. The "ash tree" class attack nuclear submarine is Russia's fourth-generation missile nuclear submarine, with an underwater displacement of 13,800 tons and a maximum underwater speed of 31 knots. This class of nuclear submarines is also equipped with supersonic missiles that can carry conventional warheads or nuclear warheads. The "Warsaw Woman" class diesel-electric submarine is the main diesel-electric submarine of the Russian Navy and one of the lowest underwater noise submarines in the world.