In every historically determined social formation, there exist class divisions, class antagonism and class struggle. In numerous ways, the dominated and exploited classes always resist and struggle against their domination. To aid the pursuit of their fundamental objectives (for capitalists, the accumulation of capital), the dominant classes act in the political field to constantly reduce, disallow and remove any breathing room for the popular masses. Resistance to this, which is determined by class struggle, comprises the popular democratic struggle of the masses.
In every historically determined social formation, there also exist class divisions within the dominant classes. These divisions are not fundamental antagonisms, but simply reflect opposing interests, disagreements among thieves. These are usually resolved in regulated rituals within the highly structured institutions of the state, but on certain occasions they need to work out their differences on an expanded field of battle, in a more openly violent manner.