Russian President Vladimir Putin has threatened “lightning-fast” retaliation against Western countries that intervene on Ukraine’s behalf.
Western countries have ramped up weapons deliveries to Ukraine in recent days as the fighting in the east has intensified.
More than 40 countries met this week at a U.S. air base in Germany and pledged to send heavy arms such as artillery for what is expected to be a vast battle of opposing armies along a heavily fortified front line.
Washington now says it hopes Ukrainian forces can not only repel Russia’s assault on the east, but weaken its military so that it can no longer threaten neighbours.
Russia says that amounts to NATO waging “proxy war” against it.