How did Karl Marx’s revolutionary strategy change after the failure of the Revolutions of 1848?

Following the failure of the Revolutions of 1848, Karl Marx abandoned his earlier strategy of collaborating with the liberal bourgeoisie, a tactic he had employed while editing the Neue Rheinische Zeitung.12

After relocating to London in 1849, Marx rejoined the Communist League and advocated for a more independent and militant policy. In an 1850 address to the league, he and Friedrich Engels urged workers to make the revolution "permanent" by avoiding subservience to bourgeois parties and establishing their own independent workers' governments.1

Marx eventually distanced himself from other radicals whom he labeled "alchemists of the revolution." He criticized those who sought to force immediate uprisings through "pure will," arguing instead that the working class needed a long period—potentially decades—of struggle to transform their conditions and qualify themselves for political power. Consequently, he shifted his primary focus toward deep theoretical work, including the study of political economy and the development of his materialist conception of history, rather than immediate direct action.1