In Chapter V, Orwell also brings up the central difference between Trotskyism and Stalinism. As we have discussed previously, Trotsky advocated the extension of the Revolution on an international scale. In contrast, Stalin advanced the idea of Socialism in One Country, in which he stated that, considering the failure of communism in other nations, the Soviet Union should focus its energy internally. Stalin’s Socialism in One Country was a revision of Marxism-Leninism. Orwell mirrors these events in Snowball’s and Napoleon’s debate over how best to protect Animal Farm against another human attack. Snowball wants to send messengers to spread the message of the Rebellion. Napoleon wants to stockpile weapons and train the animals to use them. Just as Stalin revised Marxism-Leninism with Socialism in One Country, Napoleon has begun to hijack Animalism to serve his own ideals.