As President Trump tries to negotiate a peace deal in Ukraine, European leaders sound the alarm that Russia could target ...

U.S. officials say Washington has agreed to provide unspecified security guarantees to Ukraine as part of a peace deal to end ...

Ukraine claimed it carried out an underwater drone strike on Dec. 15, the first such attack in maritime warfare, that ...

As it tries to demonstrate its continuing ability to fight, Ukraine said it had used drones to inflict serious damage on a ...

The attack with Ukrainian-made "Sub Sea Baby" drones hit the submarine in the port of Novorossiysk where Russia has rebased ...

Every winter Russia targets Ukraine’s energy sector, but this year the attacks are fiercer, and the power outages are worse than ever.

The Turkish Defense Ministry says it has shot down an “out of control” aerial drone that approached Turkey's airspace from the Black Sea.

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

Ukrainian underwater drones struck and disabled a Russian Kilo-class attack submarine in the Russian navy's most important remaining Black Sea base, in the first operation of its kind, ...

Ukraine has used long-range drones to attack Russian oil platforms as it expands its strikes on the country's energy sector.

Ukraine's internal security agency said the attack damaged and disabled a Russian Kilo-class submarine in the port city of ...