The Pentagon says the Oreshnik is a tweak of Russia’s RS-26 Rubezh missile, an intercontinental ballistic missile (ICBM) that has been tested since 2011.

Russia’s new ballistic missile flies on a high arc out of Earth’s atmosphere and releases multiple high-speed projectiles, making it challenging but not impossible to intercept

Russia's attack on Ukraine that used an "experimental" intermediate-range ballistic missile dubbed Oreshnik was messaging, not mass destruction. Why it matters: The Nov. 21 salvo underscored how little recourse Moscow has to Western aid — like Army Tactical Missile Systems — once deemed red lines.