But besides these new material conditions, modern warfare is carried on under the eyes of more enlightened peoples than in the past. The struggle which is now being pursued is the first great war watched by a conscious or at any rate partly conscious democracy. It is the first modern war waged (except in our own case) by national armies constituting practically the entire fit male population. The masses of the people have in most civilised countries some measure of political power. And though to the elector diplomacy and the conduct of foreign affairs are a closed book, war once declared is war by the people; and their voice must be heard in matters connected with it and arising out of it. Then, further, in the past the aftermath of war was in many ways as horrible as war itself, whilst the period during war witnessed an enormous amount of privation and suffering among non-combatants almost as ghastly as that of the battlefield. This was due not so much to inaction resulting from callousness as to unwise action and ignorance. During the past century political science and economic inquiry have made vast strides, and consequently the injurious social effects of warfare may be minimised, though not averted; and a considerable body of public opinion, far more enlightened than during any previous European war, is almost certain to exercise some pressure in the direction of wise and far-reaching action both during the war and after it is ended. These considerations must be borne in mind in discussing both the present position and possible future developments.