[...] In March 1921, the sailors of the Kronstadt fortress, the "honor and glory" of the Russian Revolution, revolted against the Bolshevik government. With the slogan "free soviets," they established a revolutionary commune that lasted 16 days, until it was crushed by communist troops. The Bolsheviks had denounced it as a "conspiracy of counter-revolutionaries." But what was it really, a counter-revolution of reactionary forces that wanted to crush the young Soviet Republic, or a genuine proletarian uprising against the dictatorship of the C.C.R., which aimed to establish the real power of the workers? The answer is given to us by the newspaper of the rebels, which is also the content of this book. [...]