Moscow
(CNN)Russia’s new hypersonic missile system known as Avangard has entered service, the country’s state media has reported. Russia’s Defense Minister Sergei Shoigu confirmed the nuclear-capable missiles had been added to service during a conference call with President Vladimir Putin on Friday.Shoigu gave his congratulations to “everyone with this significant event for our country and for its armed forces,” according to remarks carried by Zvezda, the Defense Ministry’s news network. Hypersonic is generally defined as a speed of Mach 5 or over 3,806 mph. The missiles fly into space after launch, but then come down and fly at high speeds on a flight path similar to an airplane. Their lower trajectory make them more difficult for US missile defense satellites and radars to detect. Earlier reports from Russian state news agency TASS claimed the Avangard has intercontinental range and the ability to fly as fast as Mach 20, more than 15,000 mph.