Sources familiar with an intelligence report told CNBC that Russia was trying to recover the weapon after another unsuccessful flight test.

A Russian port town was engulfed in flames after a major oil port exploded due to a "monster" missile attack from Ukraine, with the dramatic scene captured on camera. Tuapse, a crucial Russian hub for ...

In recent months, intensifying conflict around the world has called new attention to the possibility of military confrontation between nuclear-armed states. To meet these challenges, the United States ...