Ukraine’s domestic security service, the SBU, said Monday that it struck a Russian submarine in the Black Sea port of ...

Ukraine says strike is a historic first, but Russia denies attack caused any damage Ukraine said on Monday it hit and disabled a Russian missile-carrying submarine docked at a Black Sea naval base ...

The strike by the SSU's Sub Sea Baby underwater drone is not only the first recorded case in history of a successful underwater drone attack on a submarine, but also another major milestone on the pat ...

The U.S. has agreed to provide unspecified security guarantees to Ukraine as part of a peace deal to end Russia’s nearly four ...