The warnings over the offensive come as a U.S.-brokered peace process has limped along with inconclusive meetings and little ...

Listen: What does former head of intelligence agency think will happen in Ukraine? In the latest episode of The World podcast, former GCHQ director Sir Jeremy Fleming joins lead world news ...

Earlier, Russia tried to divert attention from an increase in attacks on Ukraine by accusing Europe of "sabotaging" US peace efforts.

Ukrainian artillery and drone crews are developing defensive strategies in preparation for an expected offensive by Russian forces this summer. US-supplied howitzers, drones that carry mines, and ...