How often the proverbial champagne corks in the Kremlin have really banged in recent times know only those who were there. However, it is true that there has recently been almost only good news for Russia in relation to his war of aggression against Ukraine: there were military successes on the front. And when it came to an open exchange of blows between US President Donald Trump and the Ukrainian President Wolodymyr Selenskyj at the end of February and Washington hired the military aid for Kyjiw, Kremlin boss Vladimir Putin and his follow-up were actually to celebrate.