The growing focus on the agency of norm violators has led to new insights on various rhetorical strategies that states accused of norm violation deploy. However, few studies have simultaneously examined both specific rhetorical devices that enable norm evasion and their social psychological underpinnings. Building on International Relations (IR) research on norm evasion and social psychological research on in-group wrongdoings, this paper conceptualises states’ rhetoric of norm evasion as a social psychological coping strategy: aimed at protecting in-group esteem. Empirically, the paper offers a systematic analysis of Japan’s rhetoric of norm evasion regarding its colonial and wartime past, as well as its social psychological underpinnings. Five rhetorical strategies of norm evasion are identified: (1) claiming legality, (2) claiming the inapplicability of relevant treaties, (3) claiming the inapplicability of relevant norms, (4) equivocating, and (5) citing non-disparagement pledges. These strategies, as well as the psychological disengagement they enable, have culminated in the promotion of non-remembrance, or behavioural manifestations of norm regress.