Fighting in all its aspects is a process in which men engage either to gain something, or to prevent the loss of something. The working hypothesis for the elimination of war is that the methods and processes which have in the past reduced combat between individuals and between groups are the same ones which will reduce combat between nations. The principal features of these conditions are: (1) the extension of social organization; (2) the setting up of police systems; (3) the abandonment of the attitude or principle of neutrality; and (4) the growth of solicitude for, and responsibility towards, one's neighbors. (PsycINFO Database Record (c) 2006 APA, all rights reserved)