The archetypal example of radical Nationalism that puts the prospect of advancing national interests ahead of moral and ethical concerns is the American concept of Manifest Destiny.
Historians have for the most part agreed that there are three basic themes to Manifest Destiny. 1. The special virtues of the American people and their institutions; 2. America’s mission to redeem and remake the world in the image of America; A divine destiny under God’s direction to accomplish this wonderful task.
Although there is debate about the number of Native Americans killed, a government study listed the death toll to be between 1-3 million while an independent study gave a conservative figure of 10 million and a maximum of 100 million.
However, there are still a number of revisionist historians who tend to downplay the effects American settlers had on the population (which may be somewhat true) and others who still maintain there was nothing amoral about it.