In June 2025, the direct military incursion by the Zionist regime into Iranian territory, culminating in a 12-day war, stands as one of the most significant contemporary security and geopolitical events in West Asia. This development not only produced broad military and political repercussions, but also meaningfully provided a foundation for the redefinition and reconfiguration of Iranians' national identity. The principal research question examines how an external military crisis-particularly in the form of foreign aggression-can, under conditions of political and media emergency, drive transformation in a nation’s identity discourse. Accordingly, the objective of this study is to identify how components such as national cohesion, enemy imagery, patriotism, resistance, and the discourse of “Us” versus the “Aggressive Other” are reconstructed in public opinion and in the official statements of the Islamic Republic of Iran. Drawing on Norman Fairclough's critical discourse analysis method and its three-level approach-text, discourse, and social structure-the research analyzes data gathered from official statements, audiovisual media content, news agencies, and social networks. Findings indicate that the discourse of resistance and the representation of Israel’s aggression as an overarching threat led to the symbolic mobilization of segments of society and a temporary strengthening of national cohesion. However,