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.
"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."
Rosa Luxemburg was the most eloquent voice of the left wing of German Social Democracy and a constant advocate of radical action. She spent much of the war in jail, where she wrote and then smuggled out this pamphlet. Published under the name “Junius”, a pseudonym used by an influential English pamphleteer in the 18th century, the pamphlet became the guiding statement for the International Group, which became the Spartacus League and ultimately the Communist Party of Germany. Luxemburg was instrumental in these developments and, along with Karl Liebknecht, led the Spartacists until their assasination by the German government on January 15, 1919.
