Those who argue for the first view endow man with such pugnacious instincts that some outlet in aggressive behavior is necessary if man is to reach full human stature. It was this point of view which lay back of William James's famous essay, "The Moral Equivalent of War," in which he tried to retain the warlike virtues and channel them in new directions. A similar point of view has lain back of the Soviet Union's attempt to make competition between groups rather than between individuals. A basic, competitive, aggressive, warring human nature is assumed, and those who wish to outlaw war or outlaw competitiveness merely try to find new and less socially destructive ways in which these biologically given aspects of man's nature can find expression.
Source
The Dolphin Reader. 2nd edition. Ed. Douglas Hunt. Boston: Houghton Mifflin Company, 1990. 415-421.