Book excerpt: Transitions from authoritarian to democratic governments can provide ripe scenarios for the emergence of new, insurgent political actors and causes. During peaceful transitions, such movements may become influential political players and gain representation for previously neglected interests and sectors of the population. But for this to happen, insurgent social movements need opportunities for mobilization, success, and survival. This book looks at Mexico's Zapatista movement, and why the movement was able to mobilize sympathy and support for the indigenous agenda inside and outside of the country, yet failed to achieve their goals vis-à-vis the Mexican state.