The Kinzhal, which is Russian for "dagger," is a plane-launched, nuclear-capable, hypersonic cruise missile that was successfully tested from a MiG-31BM in March.
According to the Russians, it has a top speed of Mach 10, a range of 1,200 miles and is even maneuverable at hypersonic speeds. With the 1,860-mile unfueled range of the MiG-31BM, the Kinzhal would have intercontinental strike capability.
However, several reports have been skeptical of the Kinzhal's capabilities. The War Zone's Tyler Rogaway even likened it to Russia's Iskander ballistic missile.
The new video released by the Russian MoD also shows a Tu-22 carrying the Kinzhal, which would give it an even greater range.
Read more about the Kinzhal's specs here.