Background: After Russia’s invasion of Ukraine on the 24th of February 2022, a wave of solidarity has risen in Slovakia and many people have stepped up to help refugees from the neighbouring country. Slovakia’s welcoming attitude was in strong contrast with the previous anti-refugee atmosphere. The study builds on theoretical models of collective action and allyship, focusing on the motivations of advantaged group members to engage in action for disadvantaged groups.Objectives: The aim of the study was to explore motivations of solidarity with refugees in Slovakia and, specifically, examine motivations of people engaged in helping immigrants and refugees in the past, as well as of those who were mobilised only after the invasion of Ukraine.Methods: Semi-structured interviews were conducted with 9 participants that were involved in various forms of active support for refugees from Ukraine. We used reflexive thematic analysis to develop and interpret patterns of meaning around the key concepts described in the interviews.Results: The first theme was developed around the events that participants described as triggers or significant moments that had elicited their need to support refugees. These moments were often accompanied by moral shock, leading to solidarity based actions. Yet the urgency to help and subsequent active form of solidarity served different functions, such as expressing a political opinion or coping with negative feelings. The second theme presented a broader perspective on helping a disadvantaged group, based on a social identity that contributes to the level of inclusiveness of the moral circle that can lead to selective solidarity. Moral inclusion can also shape the types of experiences or events that trigger a moral shock.Discussion and conclusions: Our findings can provide a basis for further research, but also invite us to reflect on how public discourse can shape the level of inclusiveness of the moral circle in society and subsequently facilitate or hinder solidarity-based collective action.