A compilation of key works by Leon Trotsky, written between 1904 and the end of April 1917, about the character and tasks of the Russian Revolution.

On March 21st, 1919, the Hungarian Soviet Republic was proclaimed. On the 1st of August, 133 days later, this heroic chapter in the history of the Hungarian working class was brought to a close with the entry of the White Rumanian army into Budapest. Had the Hungarian proletariat succeeded, the isolation of the Russian Workers' Republic would have been brought to an end.