1 million Chinese soldiers or 10 million it doesn’t matter, America will not respond with a measured response to a nuclear strike on its soil. It will respond with an overwhelming nuclear response. If China wants to send their men to die that’s on them. MAD is the only thing keeping the world relatively peaceful right now, and if one side blinks and refuses to respond the whole system crumbles and all out war breaks out for the 3rd time in recent history.

It seems to me that a million conventionally armed soldiers today is like a legion of horse mounted soldiers in WW1. Technology has advanced so much since the last total war that any future war would look completely different (reference is to horses used in battle vs tanks during WW1).