New medievalism or neo-medievalism challenges the authority and capacity of the state. This weakening or hollowing out of the state has implications most notably for security. This is because a host of actors compete against and adulterate the state's monopoly on violence. Identities are also impacted by neo-medievalism, with multiple, crosscutting and transnational networks of belonging all becoming more prevalent. However, a neglected area within the literature are the impacts on national identity: the perceived sense of belonging to a nation based on shared culture, memories or institutions. National identity is seen as becoming increasingly obsolete due to the myriad of state challengers. This paper instead argues that neo-medieval security considerations are themselves shaping national identity in different ways. This is addressed by examining the impacts of three such developments: the changing nature of warfare, the increasing role of nonstate actors and the prevalence of transnational organizations.