The Pentagon has mentioned round 8,500 combat-ready US troops are on excessive alert to deploy at quick discover amid rising rigidity over Ukraine. Nonetheless it made clear there are not any plans to ship forces to the nation itself.
Russia has denied planning navy motion towards Ukraine, regardless of massing 100,000 troops near its border.
President Biden has held a video name with European allies as Western powers talk about a standard technique if Russia launches an invasion.
Some NATO members, together with Denmark, Spain, Bulgaria and the Netherlands, are already sending fighter jets and warships to jap Europe to bolster defences within the area.
Huw Edwards presents BBC Information at Ten reporting by Gabriel Gatehouse in Kiev, Steve Rosenberg in Moscow and Barbara Plett Usher in Washington.
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