Sure Russia helped to establish"PRC",NOT China. but if it didnt and gave ROC a chance to consolidate its control over China after the war, can you say for sure that the result would be bad for the Chinese people?Russians just wanted to establish a pro Soviet government in China at the cost of Chinese people,but it was understandable,all countries do things in their own interest.
I agree with you . In international politics there are no permanent friends or even permanent enemies ....
Look at this ...at the end of the world war ...Japan was US enemy and US was (unwwishfully ) on side of China ...today whole equation has changed ...
Pakistan was once US great friend ....today Pakistan hates US like nothing ...
Same US which threatened India in war of 1972 ...is getting closer to India...all happens with reasons ....
US pitted Pakistan against India and now wants to pit India against China ....
Just like China props Pakistan against India ....
US wants to contain china that's why they have discovered common democratic values in India now...They will make sure that India and China keep each others busy ...so that Beijing does not catch up and threaten its Number 1 position !
This is how big countries work ...