US President Joe Biden on Friday reacted to Russia’s largest aerial assault in Ukraine, calling it a “stark reminder” to the world that Russian President Vladimir Putin’s objective remains unchanged after nearly two years of the devastating war and accused him of trying to “obliterate Ukraine and subjugate its people.”US President Joe Biden on Friday reacted to Russia’s largest aerial assault in Ukraine, calling it a “stark reminder” to the world that Russian President Vladimir Putin’s objective remains unchanged after nearly two years of the devastating war and accused him of trying to “obliterate Ukraine and subjugate its people.”