|I am always surprised when I hear about the claim by some Russian nationalists to the effect that the US wants a weak and divided Russia. My view of history biases me in favor of the idea that a stable, self maintaining Russia is very desirable from the viewpoint of American self interest.
Whether or not the US is in some close alliance with Russia at any given time, Russia's continued existence is a source of security to us. Russia seems to attract the attention of aggressive neighboring countries as suggested by history. Countries that aggressive will wind up threating us at some point later. Although we have not had aggressive attacking neighbors in the past, any in the future should interest the Russians for the same reason.
I believe Russia's situation, character and extent recommend that they are natural allies of the US even if not overtly so.
We have been close friends with the Europeans and the Japanese but we can see the Europeans getting restless even now and the Japanese may be stirred to action by the Koreans and the Chinese.