I think full-scale war between China and the US also entailed these, taken from
last week:
The problem is - How? How should China do that without triggering a nuclear exchange with the US? Using ICBMs, even if fitted with conventional warheads, seriously risks being mistakenly viewed by DC as a Chinese nuclear first strike.
In the meantime, China doesn't have strategic bombers that can reach CONUS to begin with.
No cruise missile with big enough range to reach CONUS from mainland China either.
And China doesn't have a sufficiently large navy fleet that can overwhelm the US Navy on its own, capture all those US-held Pacific bases and islands, and sail right off the Californian coast to lob missiles at San Francisco and Los Angeles.
So,
how, exactly?