Their battle, our battle? Flemish solidarity with the Guatemalan revolutionary insurgency from a transnational perspective, 1979-1996. Reflecting on global solidarity recently took an innovative turn in a series of studies on the European mobilisation for Chile and Nicaragua. In focusing on these large-scale campaigns, history has freed the oppositional movements of the Third World from their position as passive recipients of Western solidarity and ascribed them a formidable agency in constituting and shaping their transnational solidarity networks. Research, however, remained centred on movements whose claim to govern, stemming from actual or previous state power, was widely considered as legitimate and was backed by substantial financial and cultural capital. In turn, this study investigates the transnational network that connected Flemish and European grassroots solidarity committees to the Guatemalan revolutionary insurgency. Embedding this solidarity network firmly in the social-political dynamics of Guatemala will show the insurgency’s distinctively less beneficial position in the quest for global solidarity and will uncover the necessity to nuance the observed patterns of active involvement.