It may be thought strange that public opinion should appear to support all that is being done by the authorities for the prosecution of the war. But this appearance is very largely deceptive. The continuance of the war is actively advocated by influential persons, and by the Press, which is everywhere under the control of the Government. ... Such acquiescence as there is in continued hostilities is due entirely to fear. Every nation believes that its enemies were the aggressors, and may make war again in a few years unless they are utterly defeatd.
Source: The Autobiography of Bertrand Russell, v.2(1968)p.220
More info.: https://russell-j.com/beginner/AB21-220.HTM