Ukraine President Zelensky invites Joe Biden to visit Kyiv , deliver a powerful signal to Russia

United States has once again reiterated its warning that Russia could invade Ukraine at any moment this as talks on the highest levels between the West and Russia continue in a bid to defuse the situation which in recent days have heightened dramatically . In the latest , US president Joe Biden briefed Ukrainian president Volodymyr Zelensky in an hour - long call about the conversation he had with Russia's Putin .