If the United States suddenly attacks Russia, how much will it cost to completely occupy Russia?

No If Russia's nuclear forces can be wiped out in the first wave of air strikes, there will be no nuclear balance in the world and there will be no five permanent members. The cold war will not be a cold war, and the third world war has already started.

The nuclear balance exists in the world because the nuclear forces of the five nuclear powers cannot collapse without a fight. At present, the nuclear forces of nuclear powers are all trinity. It is to ensure the ability of secondary nuclear strike and nuclear counterattack.

Trinity nuclear forces are divided into land-based nuclear missile launch sites, road nuclear missile launch vehicles and ballistic missile nuclear submarines.

First of all, even if we only look at the land-based nuclear missile launch site, it is impossible for the United States to be completely clear in an instant. Because a considerable part of these launch sites themselves are hidden in underground nuclear facilities. At present, there are several methods to calculate nuclear facilities, such as strategic nuclear missiles or air strikes. Strategic nuclear missiles need flight time, and when the missiles are still in the air, Russia has already started a nuclear counterattack. The air raid must first break through the defense, and it is subtle. B2 may be able to break the defense successfully (although B2 has not demonstrated its ability to break the defense against military powers in actual combat), but it is impossible to break the defense without being aware of it. Because at present, military powers have satellite warning in addition to radar warning. Large-scale air strikes cannot escape satellite warning. What's more, it is impossible for nuclear bases in different locations to be devastated at the same time in a few minutes without anyone noticing.

What's more, even if the land-based nuclear launch site was really destroyed in the first nuclear strike. All five nuclear powers have two other nuclear forces. The location of the road nuclear missile launch vehicle is completely confidential. How is it possible to find and hit them all in the first place? Not to mention the strategic nuclear submarine hidden in the ocean. The strategic nuclear submarine is so important because it must carry out the nuclear counterattack mission. Even if the country is burnt to the ground. Strategic nuclear submarines will still launch nuclear missiles on the high seas to complete the nuclear counterattack mission.

At present, the nuclear forces among several nuclear powers are in a nuclear deterrent balance, which is why the world still exists. If one day a country has the technology that can make the other side lose all its nuclear strike power before it can fight back. Then World War III will break out. .