Terrorism and Communism: A Reply to Karl Kautsky (German: Terrorismus und Kommunismus: Anti-Kautsky; Russian: Терроризм и Коммунизм) is a book by Soviet Communist Party leader Leon Trotsky. First published in German in August 1920, the short book was written against a criticism of the Russian Revolution, Dictatorship of the Proletariat, published the previous year in Vienna, Austria by prominent Marxist Karl Kautsky. Trotsky's book, the first English edition of which bore the title The Defense of Terrorism, dismisses the notion of parliamentary democracy to govern Soviet Russia and defends the use of force against opponents of the revolution by the dictatorship of the proletariat. Source: Wikipedia (en)