The latest satellite imagery shows the number of Russian forces positioned on the country's border with Ukraine are continuing to grow.
President Vladimir Putin said on Thursday that he wants an immediate response from the West to his demands including guarantees that Ukraine will never be offered NATO membership.
The Biden administration says talks are possible, but only if America's European allies are included.
Anthony Glees is an Emeritus Professor at the University of Buckingham.
IN: "I think…"
OUT: "…extremely serious"
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