Moments of heightened violence and war in Palestine have often elicited extraordinary regime and opposition reactions in Arab states, including large-scale popular protests that are otherwise rare in such authoritarian contexts. This article examines how foreign policy influences domestic political opposition under authoritarianism. We approach this relationship combining classical insights from foreign policy analysis (FPA) with our own theorization of opposition as a tri-dimensional political space – as the dynamic product of intersecting institutional, practical and discursive spaces. Empirically, we capture such complexity through an exploratory, in-depth case study focusing on Morocco and, specifically, on the expressions and reconfigurations of its opposition movements in response to Israel’s wars on Gaza (2008–2009 and 2023–2025). Drawing on interviews conducted between 2007 and 2024 as well as official statements and press releases, these two episodes shed light on the consequences of both time-bound foreign policy shocks and more gradual, structural foreign policy transformations.