The authorization of longer-range missiles by the Biden administration is seen as an effort to counter a buildup of Russian troops supported by fighters from North Korea.
China does not actually give a shit about Russia’s problems, and they are probably not too happy about their campaign of global chaos either. Russia is useful political leverage, and if China just sits tight and lets things play out there’s a good chance Russia ends up as a subordinate client state before the decade is out. It’s doubtful they would put boots on the ground for a goal that does not align with their long term interests.
China does not actually give a shit about Russia’s problems, and they are probably not too happy about their campaign of global chaos either. Russia is useful political leverage, and if China just sits tight and lets things play out there’s a good chance Russia ends up as a subordinate client state before the decade is out. It’s doubtful they would put boots on the ground for a goal that does not align with their long term interests.