NATO chief Jens Stoltenberg has warned that the threat of Russia invading Ukraine remains real.
The West claims President Vladimir Putin has 100,000 troops along with tanks and missile batteries on the border.
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The West claims President Vladimir Putin has 100,000 troops along with tanks and missile batteries on the border with Ukraine
Mr Stoltenberg said: “The Russian military build-up has not stopped.
“There are more forces, more capabilities. The risk of conflict is real. Russia’s aggressive actions seriously undermine the security order in Europe.”
Moscow demands Nato removes all forces from countries that joined the alliance after 1997.
Mr Stoltenberg, after talks with foreign ministers, said: “We must be prepared for the possibility diplomacy will fail.”
Top Russian and US officials are due to meet in Geneva on Monday in an attempt to diffuse the crisis.
Foreign Secretary Liz Truss said: "Any Russian military incursion would be a massive strategic mistake.
"The free world must rise to meet this moment."
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Putin continues to flood troops to Ukraine border - as Russia gears up for ‘short, sharp war within DAYS'