Trump takes out North Korea missiles with conventional bombing.
So this is world war 3 as this article shows China will go to war against the USS.This is world thermonuclear war and we'll find out what China really has . And if you think Russia won't get involved your insane.
So yes the there is a very likely possibility the USA gets annihilated. You say China has “only” 300 nukes. Yeah that's what they say of course they'd never lie and like 300
is not enough to wipe the USA.
Get a clue.
Either strike now or get nuked later . It's really that simple,
With references, to include US Senate testimony:
http://journals.sagepub.com/doi/abs/10.1177/0096340215591247?journalCode=bosb
Even the US DIA has estimated China is capable of delivering no more than 100 warheads to the US mainland.