Will the UK join a war with Russia? West in crisis talks over Ukraine
Will there be a war?
President Biden has said that an invasion would be "the most consequential thing that's happened in the world in terms of war and peace since World War II."
Current intelligence assessments from White House officials have concluded that the Kremlin is yet to make a decision on whether it will invade Ukraine.
Talks are ongoing between the US and Russia, who want to halt further eastward expansion and agree not to admit Ukraine as a member of NATO.