To understand the nature of the present war – for in spite of the re-grouping which occurs every few years, it is always the same war – one must realise in the first place that it is impossible for it to be decisive. None of the three super-states could be definitively conquered even by the other two in combination. They are too evenly matched, and their natural defences are too formidable. Eurasia is protected by its vast land spaces, Oceania by the width of the Atlantic and the Pacific, Eastasia by the fecundity and industriousness of its inhabitants. Secondly, there is no longer, in a material sense, anything to fight about. With the establishment of self-contained economies, in which production and consumption are geared to one another, the scramble for markets which was a main cause of previous wars has come to an end, while the competition for raw materials is no longer a matter of life and death. In any case each of the three super-states is so vast that it can obtain almost all the materials that it needs within its own boundaries. In so far as the war has a direct economic purpose, it is a war for labour power. Between the frontiers of the super-states, and not permanently in the possession of any of them, there lies a rough quadrilateral with its corners at Tangier, Brazzaville, Darwin and Hong Kong, containing within it about a fifth of the population of the earth. It is for the possession of these thickly populated regions, and of the northern ice-cap, that the three powers are constantly struggling. In practice no one power ever controls the whole of the disputed area. Portions of it are constantly changing hands, and it is the chance of seizing this or that fragment by a sudden stroke of treachery that dictates the endless changes of alignment.