Caves are pretty useless as fallout shelters.
Yep. Definitely been Poed!
You should read up on your geo-political military studies. An amphibious assault on Taiwan is not practical, even for China, and an annihilation attack would be against China's interests (short and long term).
Not physically possible. Stop reading nonsense. It will rot your brain.
You talk about practicality ? China will not use a nuke on Taiwan because they want to use the land themselves, but missiles, yes. China can take their sub far from Taiwan and hit it undetected from the Pacific ocean, that's very practical.
The ballistic missile submarine is still considered the most secure leg of the nuclear triad (land-, air-, and sea-launched nukes). And sub-borne missiles have only increased in range, power and accuracy.
In 1979 in the USA came the navy's most trusted weapon—the Trident C4, which carried the payload to a distance of
4,600 miles.
It meant a sub in the Pacific could hit ANY target in the Soviet Union.
Today, American
Ohio-class and British
Vanguard-class submarines are equipped with a sixth-generation Trident weapons system.
As the missile approaches, it ejects twelve independent warheads at different targets. Each warhead has a yield of 100 kilotons—
six times greater than the Hiroshima bomb.
CHINA has the
JL-3 submarine launched, that has a reported range of over 9,000 km
(5,600 mi).
But Chinese and US sources report JL-3 ranges up to
7,500 mi (12,100 km)
The JL-3 is expected to carry
multiple independently targetable reentry vehicles—warheads capable of targeting numerous separate locations.
China also has
Intercontinental Missiles