In history, ocean island countries have always had natural hostility towards continental empires. The empire that once had the world's most powerful navy, the 'Sun Never sets', is now in a state of chaos. Faced with two Russian Navy nuclear submarines approaching the British Isles in the near future, the Royal Navy can be said to be flustered and can only send one escort ship to closely monitor, exposing the essence of a paper tiger.

On the 22nd, the Royal Navy of the United Kingdom released an "exceptionally detailed" press release, revealing two Russian nuclear shipssubmarineThe Royal Navy dispatched one Type 23 "Duke" class anti submarine frigate, the "Portland" (F79), to track the Russian Navy's most advanced Yasen class "Severodvinsk" (K-560) and Akula class "Wild Boar" (K-157) attack submarines while passing through the British Isles to the Baltic Sea.

These two nuclear submarines both set sail from Murmansk, the home port of the Russian Northern Fleet, passing through the Barents Sea, Norwegian Sea, and North Sea, and will eventually arrive in St. Petersburg on the Baltic Sea at the end of this month to participate in the annual Russian Navy Day. On the 16th of this month, the "Portland" discovered these two nuclear submarines in the North Sea northwest of Bergen, Norway.

Although NATO has deployed underwater sonar (codenamed GIUK Line) in Greenland, Iceland, and the British Isles, these two nuclear submarines were in an upwelling and surface navigation state at the time. When entering the Baltic Sea and passing through countries such as Denmark, the "North Devonsk" and "Wild Boar" also sailed in a "harmless passage" upwelling state. This can also be seen in the photos of the "Portland" tracking the two warships released by the Royal Navy.

Nevertheless, the UK, which plays the role of the "anti Russian vanguard" in diplomacy and defense, has also taken a strong stance. The Royal Navy has confirmed that the Portland carries a carrier based anti submarine aircraft, the Grey FalconhelicopterAnd it received support from the American made P-8A "Poseidon" long-range shore based anti submarine patrol aircraft flying from the UK mainland. The "Portland" is an upgraded Type 23, equipped with expensive Type 2087 towed active and passive low-frequency sonar at the tail. In addition, this type of ship is the world's earliest warship to use diesel fuel electric integrated propulsion, with low self noise and outstanding submarine search capabilities.

However, this news still reveals a key information, that is, the Royal Navy only has one Type 23 frigate and six Type 45 air defense destroyers that can be immediately deployed. They are basically lying in their nests for maintenance and upgrading, especially for targeted improvements to the inherent deficiencies of the integrated power system. Therefore, the 13 Type 23 frigates have to deal with many tasks and go on long voyages to other places, which can be said to be stretched thin. Two years ago, it was reported that the Royal Navy of the UK even sent minesweepers with only mine detection sonar to track the Russian Navy's Kilo class submarines.

Two Russian nuclear submarines represent the highest level of Russia's underwater combat capability. The "Severodvinsk" is the first ship of Russia's fourth generation attack nuclear submarine, the Yasen class, which entered service in 2013. This type of nuclear submarine is a multi-purpose nuclear submarine that combines cruise missile submarines and attack submarines. Its underwater displacement can reach more than 13000 tons, which is larger than the "Virginia" of the United States and the "Smart" of the United Kingdom.

It is a multi-purpose vertical launch with 32 units at the rear of the hull, capable of launching P-800 "Onyx" supersonic anti-ship missiles or 3M-14 "caliber" cruise missilesMissileAnd the most advanced "Zircon" hypersonic missile, the "Yasen" class is the first Soviet nuclear submarine to use a spherical large-diameter sonar array, codenamed "Ertix Anfira". Therefore, 10 533mm torpedo launch tubes are located on the side of the hull, and its situational awareness capability is significantly improved compared to the third-generation "Akula" class.

The "Wild Boar" is a 971U "Dogfish B" class attack nuclear submarine that entered service in 1995 and was named the "Akula II" in the West.

This type of nuclear submarine is the largest third-generation attack nuclear submarine built by the Soviet Union, with a total of 15 built. The last one was only put into service in 2009, which is the "Chakra II" (formerly known as the "Seal") leased to India. This type of nuclear submarine does not use a titanium alloy pressure resistant hull. Compared with another third-generation titanium alloy attack nuclear submarine built at the same time, the 945A/B "Sela I/II" class, the "Akula" class has high deployment efficiency and maintainability, and is currently the absolute mainstay of the Russian Navy's attack nuclear submarines.