[Classics] Imperialism: The Highest Stage of Capitalism Lenin's masterpiece Imperialism is an immortal monument to his work in the vital field of theory. No book has ever explained the phenomenon of modern capitalism better. Indeed, all of Lenin’s predictions concerning the concentration of capital, the dominance of the banks and finance capital, the growing antagonism between nation states and the inevitability of war arising out of the contradictions of imperialism have been shown to be true by the entire history of the last 100 years.
[Classics] Socialism and War Lenin decided to write the pamphlet Socialism and War (The Attitude of the R.S.D.L.P. Towards the War) in connection with the preparations for the First International Socialist Conference. G. Y. Zinoviev helped write the pamphlet, though most of it was drawn up by Lenin, who, moreover, edited the entire text. The pamphlet was published in German in September 1915 and distributed among the delegates to the Zimmerwald Socialist Conference.
The Main Enemy Is At Home! (Leaflet, May 1915) "Proletarians of all countries, follow the heroic example of your Italian brothers! Ally yourselves to the international class struggle against the conspiracies of secret diplomacy, against imperialism, against war, for peace with in the socialist spirit."