Looks like Russia is officially putting the Biden Admin on notice that there will be work to do. Thousands of Russian troops and artillery is being reported on the March to the eastern Ukraine border with Russia.
https://www.reuters.com/article/uk-ukraine-crisis-russia-idUKKBN2BO6BU
https://www.reuters.com/article/uk-ukraine-crisis-russia-idUKKBN2BO6BU