In comments quoted by the state-run Sputnik website, a Kremlin spokesperson said: "The president noted that the development of the weapons was nothing but Russia response to the U.S. withdrawal from the [Intermediate-Range Nuclear Forces Treaty] treaty and the creation of the global air defense system that infringes upon the nuclear balance and is capable of neutralizing Russian strategic forces", Peskov said. "It's not a bluff, you trust me".
"All of those tests were successful".
Russia may potentially use nuclear weapons only in the event of an impending nuclear attack, or if there is a threat to the country's existence, Russian President Vladimir Putin said in an interview with the NBC broadcaster.
Putin, who has dominated his country's political landscape for the last 18 years and often used anti-Western rhetoric to mobilize support, said the technological advances meant that NATO's build-up on Russia's borders and the roll-out of a USA anti-missile system would be rendered useless. "It may appear someday, but by that time, we will develop something new".
It wasn't immediately possible to assess whether the weapons could do what Putin said or how ready they are for deployment, but they would represent a major technological breakthrough that could dramatically bolster Russia's military capability, boost its global position and trigger a new arms race. "You have failed to contain Russian Federation".
The Russian leader said the high-speed underwater drone also has an "intercontinental" range and is capable of carrying a nuclear warhead that could target both aircraft carriers and coastal facilities.
In his almost two hour speech, Putin showed tests of a new missile system he said could fly at 20 times the speed of sound and maneuver up and down, and is not owned by any other country.
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You could often tell in the tunnel that we would have teams beat and the current approach feels like a million miles from that. I'm not so sure. "Sometimes it looks like we have to give everything to the players and they give nothing back to us".
He added, to applause, that names for the nuclear-powered cruise missile and the drone haven't yet been chosen, and suggested that the Defense Ministry run a nationwide contest for the best names.
"This makes it absolutely invincible for any forms of air and missile defense", he boasted, calling it an "ideal weapon".
"The way (Putin) is able to govern, the things Putin is able to say, the way things seem responsive to Putin without the institutions of government pushing back on him", Hayden said.
"Unfriendly steps towards Russian Federation such as the deployment of the (US) anti-missile system and of North Atlantic Treaty Organisation infrastructure nearer our borders and such like, from a military point of view, will become ineffective".
Congressman Mac Thornberry, Chairman of the House Armed Services Committee, said that for too long presidents of both parties have let all sorts of persistent Russian aggression go unanswered, whether violations of multiple treaties, election meddling, planting fake news stories, or invading sovereign countries.
"No one has listened to us", he said. He said it can carry more warheads than the world's heaviest ICBM, the Soviet-designed missile known in the West as Satan. "The growing Russian military power will guarantee global peace".