Blockades are a long‐standing tool used by political groups of various kinds to interrupt or redirect flows of materials, capital, and people. In this introduction to the Symposium, “On the Blockade: Geographies of Circulation and Struggle”, we review recent debates concerning the politics of spatial disruption, chokepoints, and circulation struggles. In doing so, we question some tendencies to fetishise the seizure of capital circulation as a de facto progressive form of disruption to the contemporary order. We argue that blockades ought to be considered not merely as tactics or pure negations of capital, but instead are articulations of collective life and open‐ended attempts to build power. Thinking with blockades thus requires accounting for not only their spatial disruption but also their distinct historical contexts and social forms. We introduce the articles in this Symposium through an analysis of five modalities through which blockades can be interpreted: as moments of refusal, redistribution, provocation, subject‐formation, and concrete utopia. Finally, we describe five future directions for scholars and movements: insurgent mapping, feminist interpretation, expansion of blockade networks, analysis of reactionary blockades, and broadening the geographical and historical scope of study.