Politics in the Age of Power
What was, was. The past defines itself. Historians refuse to accept that definition and instead superimpose their analysis of the past through the eyes of the present. Thus, history becomes a pale reflection of the present, while the true past is lost behind the reflected image presented by historians who would have us see what they believe, rather than what was.
Dawn for a Distant Earth - chapter:LI
Wars are fought because someone can generate the impression of loss, or the impression of gain. Take away that impression, and you make it that much harder to generate support for war.
Wars can only be fought with popular support or with centralised government control. Centralised and strong governments arise because of the perception of unmet needs. They maintain power because they generate new perceptions of needs which are unmet or by fueling the impressions which lead to war—or both.
Take away the perception of unmet needs, and strong governments find it increasingly difficult to maintain power without becomming even more tyrannical.
The Silent Warrior - chapter:IX