Japan's Border Measures during Covid-19: How the Crisis Shaped 'Others' to Protect the 'Stability of Self'

The Covid-19 pandemic has prompted countries to implement a wide range of specific cross-border security measures. The fear and anxiety induced by this crisis have rapidly expanded and contracted countries' understanding of 'self' and 'other'. This study examines Japan's shift from liberal pre-Covid-19 border policies to the most stringent border closure measures among the G7 countries during the pandemic. In this study, we argue that the pandemic-induced fear increased anxiety in Japan's public health safety identity, rapidly reshaping the conceptualization of the 'self' and 'other' in crisis scenarios. This shift aligns with Japan's historical narrative of combating unprecedented threats to public health.