What became of the upsurge in civic action that saw millions of volunteers rally in support of migrants during the 2015/16 refugee reception crisis in Germany? Clara van den Berg examines the aftermath of that unprecedented mobilization, exploring how pro-refugee communities evolved in Germany. Drawing on interviews, observations, and document analysis, she finds that some pro-refugee communities managed to survive. The study provides fresh insights into how mobilization periods impact the local structure of civil society and its networks, and offers a new perspective on the role of solidarity with refugees and migrants today.