In the context of the ongoing war in Ukraine, it is striking that there have been many references to resilience, including by Western and Ukrainian leaders. This article is precisely about their use of resilience discourse, and it makes two important contributions to existing scholarship on resilience in conflict settings. First, drawing on Ish-Shalom’s idea of ‘concepts at work’ and analysing a selection of speeches and policy statements (by Western leaders and President Volodymyr Zelensky) that specifically refer to resilience, it demonstrates that resilience is a significant ‘concept at work’ in the war, making certain forms of international and domestic politics possible. Second, while research on resilience frequently discusses different ways that the concept has been defined and approached in fields such as engineering, ecology, and psychology, this article highlights that diverse framings of resilience have become entangled as the concept is ‘at work’ in the war in Ukraine. More specifically, its analysis makes prominent the fusion of different resiliences at different levels – from the individual to the systemic – discursively working together for particular political ends. In this way, it offers a novel way of thinking multi-systemically about resilience and, by extension, about resilience and complexity.