[Last time. Hima went up against an island, it was Japan and they made China its beeotch.]
And the idea that insurgency is even possible under Chinese rule is idiotic. If the Chinese manage to occupy the country, it’s all over. They’ll simply starve the rebels out.
Re preparation, Taiwan has downgraded its defenses even as China has upgraded its offensive capabilities. Taiwanese governments on both sides of the aisle have talked tough while taking an axe to defense spending. Taiwan’s defense spending in dollar terms peaked in 1992:
https://tradingeconomics.com/taiwan/military-expenditure
That number has gone down 1/3 since that year. Meanwhile, Taiwan’s economy has tripled in size:
https://en.wikipedia.org/wiki/List_of_countries_by_past_and_projected_GDP_(nominal)#IMF_estimates_between_1990_and_1999
https://en.wikipedia.org/wiki/List_of_countries_by_past_and_projected_GDP_(nominal)#IMF_estimates_between_2010_and_2019
Whereas US defense expenditures, while lower as a % of national production than during the Cold War, are nonetheless, in dollar terms, double 1992 levels, to account for inflation. Whereas Taiwan, with a mortal enemy across just 100 miles of water, chose to close its eyes in the face of China’s massive buildup, and not only not increase military spending, but actually decrease it.
There are already enough transport ships in the strait to transport tens of thousands of soldiers. It’s a short plane ride for their jets and troop transports.
Of course if it went on for more than three days they would be down to swimmers and a kayak brigade.