 Complete the following phrase:  At first, the collectivists worked with the Marxists to push the First International in a more revolutionary socialist direction. Subsequently, the International became polarised into two camps, with Marx and Bakunin as their respective figureheads. Bakunin characterised Marxs ideas as centralist and predicted that, if a Marxist party came to power, its leaders would simply take the place of the ruling class they had fought against. In 1872, the conflict climaxed with a final split between the two groups at the 