Just my 2 cents. If there is a war, it is likely to be start by
China. Look at the way they run their country, Internet things also
censor here censor there.
I think US will help abit, not alot as war is costly to them. I
don't think US can help everybody, besides, China is not a small
country like Iraq.
In a war, nobody really wins I think. There will be many
casaulties.
It will take at least months for the war to end, Taiwan is no
pushover either. They have good secret technologies I am sure. I
believe China have sent spies to do some recon first in Taiwan,
know the enemy know yourself. In fact, China seems to send spies
everywhere, even to US.
I think if there is a war breaking out, it's not good to alot of
countries. Worse case, there may be world war 3 when countries
starts to side with one or the other.