Vladimir Putin has unveiled a hulking new nuclear submarine capable of launching torpedoes said to be able to create "radioactive tsunamis".
The submarine, known as Khabarovsk, is able to launch Mr Putin's Poseidon nuclear drone at Nato allies - and has been described by the Russian leader as "impossible" to intercept.
Poseidon can travel at speeds of up to 115 miles per hour beneath the surface and operate at depths exceeding 3,000 feet.
Khabarovsk was scheduled to launch five years ago, but suffered from repeated delays.
Khabarovsk is able to launch Mr Putin's Poseidon nuclear drone at Nato member states
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But now, it has been shown off to the public, with its launch overseen by Defence Minister Andrei Belousov in the coastal Russian city of Severodvinsk.
After Mr Putin's latest military toy was launched, Mr Belousov said: "The heavy nuclear-powered missile cruiser Khabarovsk is being launched from the renowned Sevmash shipyard.
"Carrying underwater weapons and robotic systems, it will enable us to successfully secure Russia's maritime borders and protect its national interests in various parts of the world's oceans."
The nuclear submarine's launch came just days after the Poseidon drone was successfully tested.
The launch was observed by Minister of Defence Andrei Belousov in the coastal Russian city of Severodvisnk
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Mr Putin said: "'The power of the Poseidon far exceeds that of our most advanced intercontinental ballistic missile, the Sarmat [aka Satan-2].
"There is nothing like it anywhere else in the world."
The Russian leader added that there are "no means of intercepting it".
The missile, which will be carried by Khabarovsk, is believed to weigh more than 100 tonnes and measure 65 feet long.
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The Russian leader said that there are 'no means of intercepting' the Poseidon missile
| GETTYRussian propagandists have frequently claimed the Poseidon is capable of sinking Britain under "radioactive tidal waves".
Middlebury Institute of International Studies scholar Jeffrey Lewis described the missile as "downright terrifying".
He added: "We're talking about a massive, megaton-sized thermonuclear weapon designed to produce significant, long-lasting radiation effects."
Khabarovsk is estimated to have cost the Russian Government more than £1billion to construct.
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| GB NEWSAfter the Poseidon drone's successful test, US President Donald Trump ordered his Department of War to begin testing its own nuclear weapons.
"The United States has more nuclear weapons than any other country," Mr Trump said.
"This was accomplished, including a complete update and renovation of existing weapons, during my first term in office.
"Because of the tremendous destructive power, I hated to do it, but had no choice. Russia is second, and China is a distant third, but will be even within five years."
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