Answer:
He wanted to show Europeans that the United States would not help Latin American independence movements.
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The trend towards densely populated urban centers begun in 1800's continued into the 1900's. Man's development of urban centers was a major step away from what seemed to be nature's way of living: on farms and sparsely placed homesteads. Industrial production required hundreds of thousands of workers and, especially in the second industrial revolution, scientists. The urban centers that emerged during this period, such as Paris, London, and Berlin, were quickly changing the ratios of population from rural to urban Berlin's population, for example, went from 66% rural in 1871 to almost 66% urban before the first World War (see "The Second Industrial Revolution").
Answer: By the theory of natural selection.
Explanation:
Many proponents of imperialism have invoked Darwin's theses, that is, the natural selection of which Darwin speaks. In this context, he points out that it is natural for there to be a struggle for resources because these elements are recorded in the natural environment. In such circumstances, the stronger are superior and have a natural right to own these resources. Also, Darwin pointed out that the strongest are best adapted to the environment and conditions. In that way, many proponents of imperialism emphasized the mentioned norm to protect imperialist ideals.