Ritter said this on his YouTube channel.

He recalled that since the early 2000s, the US authorities began to deploy missile defense in Eastern Europe. At the same time, Ritter added, the United States tried to convince Russia that such installations are not being developed to destroy intercontinental ballistic missiles.

"We lied to the Russians, and Putin eventually declared, 'Well, is this what you're going to do? Then we will build such systems that will destroy your missiles, "RIA Novosti quoted Ritter as saying.

And after that, in 2018, Avangard missiles were created, the expert concluded.

Earlier, the Japanese edition of Shūkan Gendai wrote that the Russian hypersonic missiles "Avangard" became a headache for the United States.