Are Taiwanese willing to fight for themselves in a war with China? The answers to this question grow in importance after the inception of the Russo-Ukrainian War. In this review paper, we take stock of the findings from the budding literature of Taiwanese self-defense to discuss a number of influential factors: U.S. military assistance, gender, partisanship, identity, age, generations, and military service experience. In the second part, we zero in on the questions that urgently need answers, that is 1) the extent to which Taiwanese could tolerate war casualties and differentiate between civil and military casualties, 2) factors that could influence the assessment of the costs of war, 3) support for self-defense within the military and citizens who go through training by civil organizations, and 4) the potential connections between Taiwan and the Western literature on war support.