Russo- Chinese cooperation is nothing new, back to the Cold War Period, they have been working together. However, this "Re-Cooperation" is the result of Traditional American Foreign Policy. After the downfall of the Soviet Union, the newly born "democratic" Russia actively looked for participation with the West, Russia proactively participated in many potential cooperation with the West, Russia even attended G7 without a formal invitation (eventually became G8 later). Since the declaration of WWII, the US foreign policy had certain target to oppose against. In WWII, the Axis, the Soviet Union and Communist Countries during the Cold War Period, (Well, I am not quite familiar with the American Foreign Policies in its Colonial and Post Colonial Period, so I don't want to make a general conclusion, wellcome feedback if there are any experts in these part of history. But I think the Americans definitely againist the British at the end of the Colonial Period, right? ^_^). There was a short period of time of confusion, but the US diplomats decided to continue their traditional way in the US foreign diplomacy. On one hand, it seemed there are more cooperation with Russia, but on the other hand, the US expanded its power through different institutions, for examples, expanded and included former Eastern European States in the "sphere of influence" under the umbrella of NATO. The West, at the high participation of the US, has expanded it's missile network in Europe and more missile spots were planted the Eastern Europe. Russia has demanded for more cooperation at this aspect but got a cold shoulder from the US. Think it that way, how come there is no further integration in the Euro Zone or any form of free trade agreement between Russia and the West? Russia is a resourceful country... why?
Soon, after all these little clues at different aspects, the Russians understand that the US will never treat them as a partner like the US treated the British... Well, some may argue that Russia is not a truly democratic country, with certain control over election and the US should not treat them as a working partner. But there are many countries have problems in their elections but the US still have a close bonding with them. When you look at the Philippines at Marco's period, many corruptions and problems in the election, but the bonding remains. So, I don't believe that's the true reasons.
China is facing a similar situation to Russians' in the foreign diplomatic scenario. The US is pushing those "cold shoulders" together. I believe if China and Russia can choose, they would prefer further cooperation with the US, but the US has no interest at all. So, after all these years, the Russians and the Chinese are joining together because they understand, the West will never truely acknowledge them. No matter how much their political systems changed.
There is only one situation that the US will cooperate with China and one scenario only:
When China is willing to become the subordinate of the US.
Sorry, a subordinate, not even the 51st star on the flag.
