Following United States President Joe Biden and Russian President Vladimir Putin's secure video call United States National Security Adviser Jake Sullivan gave a press briefing. Regarding the content of the call he said " The call covered a range of issues, but the main topic was Ukraine.". Regarding what measures the United States would impose in the event of a Russian incursion into Ukraine he said "He told President Putin directly that if Russia further invades Ukraine, the United States and our European allies would respond with strong economic measures. We would provide additional defensive materiel to the Ukrainians above and beyond that which we are already providing. And we would fortify our NATO Allies on the eastern flank with additional capabilities in response to such an escalation.". Later at the same press briefing White House Press Secretary Jen Pskai was asked about what would constitute an 'escalation'. She did not offer a direct answer.
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