The movement of people across borders has always been a subject of discussion, reflecting on the responsibility of states towards individuals seeking refuge from crises. This paper critically analyses Brazil’s “Operação Acolhida” in response to the Venezuelan humanitarian crisis from the perspective of solidarity and legal cosmopolitanism. It delves into the philosophical underpinnings and practical manifestations of solidarity. The paper highlights the challenges and imperfections in the implementation of “Operação Acolhida”, such as xenophobia, communication barriers, and shortcomings in resource allocation. It calls for a deeper internalisation of solidarity within Brazilian society and a more comprehensive approach to refugee assistance.