It doesn't matter they are still decades behind the US in military technology. This will not save them if they ever decide to wage war against the US.
Don't be so careless. China steals technology worldwide and already has a 5th generation aircraft. In this they are ahead of Russia. Where is the guarantee that the Chinese have not stolen enough information to create your submarine.
This is so bullshit, law of physics, lethality and war are the same worldwide... of course it will all converge. At the end believing in patents in weapon mfgs is soo stupid, illogical and desilusional for those who do.
Then with 200'000'000 students studying in china... the quest for the infinite clean energy sources continues...
And finally what ever is just another market in china vastness. Is there really a difference between an asic miner or a submarines?
The real question is what will be the price of tea of this year harvest in 100, 500 and 1000 years...