Chinese army is more used to watch chinese citizens than watch other countries.
Isn't that the point? Chinese citizens declaring the Far East for China, guess who comes knocking.
Like I said if they try to take Siberia, EU and US and all the puppets will be against China so its economy will be attacked strongly.
If the US has to choose between Russia and China who do you think they will choose? You really think they choose Russia who has lost in a fair election made up of Hans voting for independence? To go against self determination goes against everything the Americans believe in, that and sticking it to Russia.
In terms of nuclear power Russia wins. And if russia is in position of defender, being attacked, it's easier to use nuks than for China which will attack. Russia will have a reason to use them.
You can't use nukes unless you are prepared to be nuked yourself, we are not.
Crimea was part of russia and Kroutshchev gave it to ukraine because he was an ukrainian. Chinese learn history pretty well. They know its not precedent for taking a land by colonization.
The Chinese don't care about that, they claim the entire South China Sea because it has the word China in it. They care about the oil and gas.
Finaly, China has issues with India concerning much smaller and useless part of the border and they still don't have them and are afraid to use army to take it. Same in the pacific with the islands they say its theirs but still don't have them. Last exemple is Japan's senkakyu islands that china didn't retake since all this time, only send some fighters try to get close.
Have you ever heard of Doklam? That border is so tense all it takes is one itchy trigger finger to start the next war. The next example is the South China Sea, they build it and then claim it. Then there is their debt to colonize strategy in OBOR where they give you so many loans you can't hope to repay and then you give them a 99 year lease in exchange, that could be most of Siberian oil and gas feeding China. They are overpopulating us, over indebted us and out influencing us on our own territory, it is all classic strategies of Chinese annexation.