Warfare as deferred infanticide
(Gaston Bouthoul)
From: Fornari, F. The Psychoanalysis of War.
Bloomington, IN: Indiana University Press, 1975.
Fornari (citing Gaston Bouthoul) says that war is the "voluntary destruction of previously accumulated reserves of human capital," an act performed with the implicit intention to "sacrifice a certain number of lives."

Proceeding from the empirical fact that every war causes the deaths of young men, Bouthoul arrives at the conception of war as deferred infanticide, a voluntary destructive institution, the aim of which is the elimination of young men.

War appears to be a recurrent social function, characterized by the accumulation of human capital, a part of which, at a given moment, is brutally ejected. Thus, war is a form of potlatch, an act of ostentatious destruction, the aim of which is to intimidate the rival and, ultimately,  give prestige to the donor or destroyer.