One official told Reuters that while the timing remains unclear, a retaliatory strike could be expected in the coming days ...

Russia said on Sunday its forces had advanced to the edge of the east-central Ukrainian region of Dnipropetrovsk amid a public row between Moscow and Kyiv over peace negotiations and the return of ...

A spat over the latest planned prisoner swap escalated as the Kremlin and Kyiv exchanged accusations over an ongoing delay.

The good news is that we know for a fact, based on the experience of the past three years, that even a relatively small and ...