Russia's offensive against Donbass in eastern Ukraine may continue for 'several months'.
This is stated by a senior UK national security official, reports the Independent..
The official warned Prime Minister Boris Johnson, who then told the weekly Downing Street Cabinet meeting that Ukraine's stance is "
This happened after Russian forces launched a new assault in eastern Ukraine, where they took control of the city of Kremennaya..
The siege of Kremennaya brings Russians closer to the city of Slavyansk, which was captured for several months by pro-Moscow militants in 2014 and is now a key target of Russia's invasion of the country.