We are not among those who see these events as providing us with a model of proletarian revolution which goes far deeper than anything achieved in Russia in 1917-21. But there is no question that the war in Spain has taught us a great deal, even if most of its lessons are negative ones. In particular, it offers us a very sharp insight into the inadequacies of the anarchist vision of the revolution and a striking reaffirmation of the vision that has been preserved and developed by the authentic traditions of marxism.