Should Taiwan concentrate at the first line of defense or trade space through defense in depth?
Short answerIt needs both: stop small raids near the coast, while using depth and concentrated strikes to destroy the main invasion shipping.
NotesTaiwan needs both coastal defense and the ability to fight in depth. Small raiding forces could be defeated before they establish themselves ashore. Against the main effort, one possibility is to let the first wave land before concentrating attacks on the amphibious shipping. Destroying that shipping would leave the defenders with an advantage.