Hence, the purpose of the Leninist vanguard party is to establish a democratic dictatorship of the proletariat; supported by the working class, the vanguard party would lead the revolution to depose the incumbent Tsarist government, and then transfer power of government to the working class, which change of ruling class—from bourgeoisie to proletariat—makes possible the full development of socialism.[8] In the pamphlet What is to be Done? (1902), Lenin proposed that a revolutionary vanguard party, mostly recruited from the working class, should lead the political campaign, because it was the only way that the proletariat could successfully achieve a revolution; unlike the economist campaign of trade-union-struggle advocated by other socialist political parties; and later by the anarcho-syndicalists. Like Karl Marx, Lenin distinguished between the aspects of a revolution, the "economic campaign" (labour strikes for increased wages and work concessions), which featured diffused plural leadership; and the "political campaign" (socialist changes to society), which required the decisive revolutionary leadership of the Bolshevik vanguard party.