This text answers the question of why the Czech Republic absorbed the enormous wave of refugees from Ukraine, which peaked at the end of 2022, with relative ease. Using the concepts of transnational spaces and migration networks, it shows that the preconditions for managing such migratory waves have been established due to previous mutual migration flows and economic and kinship ties. The chapter explains that in this refugee wave, previously established solidarity networks played a significant role in its direction, influencing people’s decisions and personal attitudes. The discussed case confirms the effectiveness of differentiation between economic and refugee migration. A clearly articulated cause for migration resulted in a transparent response. By applying trauma theory, the text indicates that Russia’s attack on Ukraine revived several historical traumas that Czech society experienced during the twentieth century and that are comparable to the events in Ukraine. These traumas reinforced the sense of social proximity and, thus, enhanced solidarity actions of local populations. The text demonstrates that the reactions of the local population to individual migration waves are the result of their long-term historical experience. Thus, it cannot be assumed that it will react uniformly to all migration waves.