STORY: On Nov. 21 Russia struck Ukraine's Dnipro with a new kind of missile.Known as Oreshnik, or hazel tree in Russia, it caused limited damage, according to senior officials. But the first combat use of such a design – which Russian President Vladimir Putin called unstoppable – has drawn scrutiny from Western military experts.

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

President Vladimir Putin warned that his forces could strike “decision-making centers” in the Ukrainian capital of Kyiv with new ballistic missiles as retaliation for attacks on Russia using

Russia's new Oreshnik missile is capable of carrying nuclear weapons. However, it is not yet known what kind of explosives, if any, the missile used to hit the Dnipro, The New York Times reports. According to the agency,