The term revolutionary socialism refers to socialist tendencies that subscribe to the doctrine that social revolution is necessary in order to affect structural changes to society. More specifically, it is the view that revolution is a necessary precondition for a transition from capitalism to socialism. Revolution is not necessarily defined as a violent insurrection; it is defined as seizure of political power by mass movements of the working class so that the state is directly controlled by the working class as opposed to the capitalist class and its interests. Revolutionary socialists believe such a state of affairs is a precondition for establishing socialism.