Answer:
The political slogan "Workers of the world, unite!" is one of the most famous rallying cries from The Communist Manifesto (1848)[1][2][3][4] by Karl Marx and Friedrich Engels (German: Proletarier aller Länder vereinigt Euch!, literally "Proletarians of all countries, unite!",[5] but soon popularised in English as "Workers of the world, unite! You have nothing to lose but your chains!").[5][note 1] A variation of this phrase ("Workers of all lands, unite") is also inscribed on Marx's tombstone.[7] The essence of the slogan is that members of the working classes throughout the world should cooperate to defeat Capitalism and achieve victory in the class conflict.