There are multiple forms of warfare used by multiple different types of military ecosystems. What the Chinese Communists use is similar to what the Soviets use: War of attrition. This can be in the form of resources, men or logistics. The idea here to keep throwing waves of everything until the matter either abruptly stagnates or victory is in sight. An old and forceful tactic.
The second tactic is what is used by smaller and fierce countries like Taiwan and Israel: War on offense. The countries adopting such tactics are usually small, have limited resources, but have excellent planning on utilizing these resources to their optimum. This also means that the country using this tactic may win or even lose (depending on its foe) but it will not just collapse. In fact, it would cause unacceptable damage to an offending nation, which in itself would act as a deterrent.
Taiwan's goal is clear: not to let the Communists in at anycost. Which means that in a war, they may go down but they will put up a fight that will do unacceptable damage to the Communist regime in Beijing, should a conflict break out.
This form of deterrence is usually a crude way of balancing out any threats from a potentially larger and more powerful foe.