Russian President Vladimir Putin said Wednesday that Russia’s military will begin deploying a new hypersonic missile capable of delivering nuclear warheads at 20 times the speed of sound. Putin called a recent successful test of the missile system a “perfect New Year’s gift for the country.”

President Vladimir Putin: “The new Avangard missile system is invincible for today’s and future air defense systems and missile defense systems. This is a big success and a big victory.”

Russia’s reported successful test of its new hypersonic missile came after the Trump administration said in October it plans to leave the INF, or Intermediate-Range Nuclear Forces Treaty, signed in 1987 by former President Ronald Reagan and Soviet Premier Mikhail Gorbachev. The treaty helped to eliminate thousands of land-based missiles in Europe.