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The Sandinista National Liberation Front (FSLN), a left-wing political group, spearheaded the revolutionary movement against the authoritarian rule of Anastasio Somoza Debayle in Nicaragua. Fueled by social and political grievances, the FSLN, comprising students, workers, peasants, and intellectuals, waged a guerrilla war against Somoza's dictatorial regime. Their unwavering determination and popular support ultimately led to Somoza's downfall and the establishment of a new political order in Nicaragua in 1979.