When divisions among Russian Marxists between ‘Bolsheviks’ and ‘Mensheviks’ first emerged at the second congress of the RSDLP in 1903, they remained confined to secondary differences over organisational questions. Only with the 1905 Revolution did real political differences emerge, as Lenin explained in his brilliant pamphlet of that year, Two Tactics of the Social-Democracy in the Democratic Revolution. More than anything else, war and revolution bring out political differences with crystal clarity.

On 2 March 1921, sailors in Kronstadt took up arms against the young Soviet government. The rebellion was short-lived and crushed by 18 March. But its tale has survived much longer and has been told and retold with very little concern for facts and serious analysis. The present work will not rehash chronological details of the rebellion in depth, which readers can find in great detail in many other works. Instead, it will outline the underlying processes that gave rise to the rebellion, looking beyond mere appearances to its real character, and explain the actions taken by the Bolsheviks against it.