Russia's Defense Ministry says it has successfully tested one of the "invincible" missiles that President Vladimir Putin said earlier this month could deliver a warhead at hypersonic speed and pierce US defenses.
원문출처 : https://www.cnn.com/2018/03/11/world/russia-says-it-has-tested-successfully-advanced-hypersonic-missile/index.html
원문출처 : https://www.cnn.com/2018/03/11/world/russia-says-it-has-tested-successfully-advanced-hypersonic-missile/index.html