@ougoah yeah bro, the MAD principle, some members had been annoyed by what I posted about China needs for Russian Nuclear Umbrella, yes China need to increase her nuclear weapons but it takes a lot of time and resources, resources that should be used on filling the strategic gap especially on semiconductor and aircraft engine. The understanding between Russia and China is to work together to survive this western onslaught, if one of them falls the other will be an easy target. And Russia will also be uneasy if there is a sudden increase in Chinese nuclear inventory.All major nuclear powers (Russia, China, USA) have their nukes pointed everywhere. If they receive a hit on even a major city, let alone the capital, they are launching everywhere. They die, everyone on earth is to die with them. If Russia launches on Washington DC, US is launching at China too and everywhere else. It is a matter of principle.
The idea is that no nation can come out of any major nuclear exchange better than any other. Otherwise there is incentive (albeit small) to work towards limited exchanges. Major nuke powers deter this by extending MAD to rest of world. Contrary to popular belief, China has plenty of warheads and missiles of all kinds to perform this on at least the US and Europe if it is struck down. It just needs more to ensure total coverage even on its own and to calculate for missiles intercepted, faults, and decapitating first strike that could destroy many of its missiles. Six 094 boats are just not enough for this. Lucky China is huge and has very decent OTH and early warning radars which apparently they are going to modernise and upgrade with Russia. These may even share information with Russia so they only need to keep upgrading their China facing early warning for the very remote chance China does nuclear strike on Russia. New early warning units can even warn Russia of American strike on Russia coming from SSBNs in the lower latitude Pacific.
Again, it doesn't matter who launched on you. If you do get hit, you launch everywhere. That's the unspoken rule with at least Russia and USA. If they intercept it then who knows how that situation develops but if US gets hit, the attacker won't be launching one missile, it'll be aiming to cover the US and if that is carried out, why wouldn't the US fire at both Russia and China?