What then is the reason why these millions starve in the midst of potential plenty? It is that they have lost, from certain moral causes examined later in these pages, the capacity to co-ordinate their labour sufficiently to carry on the processes by which alone labour and knowledge can be applied to an exploitation of nature sufficiently complete to support our dense modern populations. The fact that wealth is not to-day a material which can be taken, but a process which can only be maintained by virtue of certain moral factors, marks a change in human relationship, the significance of which still seems to escape us. The manor, or even the eighteenth century village, was roughly a self-sufficing unit. It mattered little to that unit what became of the outside world. The manor or village was independent; its people could be cut off from the outside world, could ravage the near parts of it and remain unaffected. But when the development of communication and the discovery of steam turns the agricultural community into coal miners, these are no longer indifferent to the condition of the outside world. Cut them off from the agriculturalists who take their coal or manufactures, or let these latter be unable to carry on their calling, and the miner starves. He cannot eat his coal. He is no longed independent. His life hangs upon certain activities of others. Where his forebears could have raided and ravaged with no particular hurt to themselves, the miner cannot. He is dependent upon those others and has given them hostages. He is no longer 'independent,' however clamorously in his Nationalist oratory he may use that word. He has been forced into a relation of partnership. And how very small is the effectiveness of any physical coercion he can apply, in order to exact the services by which he lives, we shall see presently. This situation of interdependence is of course felt much more acutely by some countries than others--much more by England, for instance, than by France. France in the matter of essential foodstuffs can be nearly self-supporting, England cannot. For England, an outside world of fairly high production is a matter of life and death; the economic consideration must in this sense take precedence of others. In the case of France considerations of political security are apt to take precedence of economic considerations. France can weaken her neighbours vitally without being brought to starvation. She can purchase security at the cost of mere loss of profits on foreign trade by the economic destruction of, say, Central Europe. The same policy would for Britain in the long run spell starvation. And it is this fundamental difference of economic situation which is at the bottom of much of the divergence of policy between Britain and France which has recently become so acute.