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How to mobilize from afar? The study of homeland oppositional politics entails an examination of the set of rules configuring this singular space of mobilization as well as an analysis of the ways organisational structures and frames are renegotiated in a migratory context. By comparing Tunisian and Egyptian Islamist mobilizations in France, this article accounts for the effects of the actors' politico-religious identity on their oppositional political practices. Both anti-Ben Ali activists in the 1990s-2000s and post-2013 anti-Sisi protesters are torn between their ambition to make their claims relevant to the French audience and the need to preserve their group's religious identity.