NATO is headless, Turkey isn't reliable anymore, lil' sultan erdo wouldn't allow his territory to be used against Putin's USSR who gave him S300, the way Turkey did it in Irak.
Putin can cut the gas supply to Europe, who will fold instantly knowing not to have anymore the military means nor the guts to try and resist the taking of the baltic countries, or help some other "minority".
"Who wants to die for Vilnius?", not Donald for sure
Putin will push his advantage to the breaking point and further.