Putin IS KGB. There was never an end to the cold war. There was only a tactical retreat to reorganize. The KGB has always been in control and that is how Putin got to be where he is.
However, at this point, even if the combined military of the entire world were to unite behind the KGB it would be dwarfed by the US military. There is no entity in the world who can approach military parity with the US now and it is US policy to never ever allow such parity to ever occur again. So all the huff and puff of the KGB Russian State (by any name)is just that. It is with this position of overwhelming strength that the US can refer to Russia or anyone else it chooses as "partners". Multilateralism is the policy of the US. But bucking US multilateralism is not wise. Iran will be an example of that in the near future. Russia will be our "partner" whether they want to or not.