Austin Horng-En Wang and Nadia Eldemerdash (both Political Science) published an article, "National identity, willingness to fight, and collective action," in the Journal of Peace Research. This article challenges the theory of mobilization, arguing that the calculation of the collective action will be salient among citizens without a strong national identity. This article provides a game theoretical model on the conditional effect of national identity on the willingness to fight, and examines the theory through a survey experiment and a representative survey in Taiwan under the context of China-Taiwan military conflict.