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One more thing. The 'white men's' technology was so superior (and was used with such ruthlessness) that the natives did not see a chance for succesful resistance. In the west it is an often overlooked fact that the japanese victories in 1941-42 shattered the myth of the 'white men's' superiority. It was the first time (THE precedent) that ingenious forces can prevail on the long run (ie not in 1-2 battles).
IMHO This is the main difference between victorian and postbipolar world.
It's important to note that this technological advantage only occurred in certain conflicts and locations. What often made the difference wasn't technology so much as it was training. This is especially true of small wars waged after about 1860.
"On the plains and mountains of the American West, the United States Army had once learned everything there was to learn about hit-and-run tactics and guerrilla warfare."
T.R. Fehrenbach This Kind of War
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