President Donald Trump’s ultimatum to Russia to accept a peace deal in Ukraine within 50 days or face bruising sanctions has given the Kremlin extra time to pursue its summer offensive.

A plainspoken Ukrainian soldier who has been defending the Pokrovsk area says it's a mistake to underestimate Russian forces.

Russia’s efforts to take control of the Ukrainian city of Pokrovsk, a key logistics hub in the Donetsk region, may be ...