Copying my answer from this question from another student who asked the same one:
Social Darwinism is the belief that people and business are subject to the same laws of nature and natural selection. This has been used by business leaders, both in the Gilded Age and today, to create a belief that the strongest businesses are the ones that survive because they survive the competitive process of natural selection.
So, massive oil companies and railroad companies (and tech companies and banks today) used social darwinism to explain their rise to almost monopoly status as a "natural" thing that was accomplished merely using the laws of nature.
It gave people free land - 160 acres - west of the Mississippi,as long as they went and lived on it for at least 5 years and showed clear signs of having improved (ie cleared and cultivated) said land.
<span>The land available included good farming land near to rivers,so was an attractive proposition for families that were willing to move westwards and set up homesteads on the land given them.</span>
Answer:
1)The USSR and the United States had agreed to a treaty to reduce strategic nuclear weapons but they also had tensions in the military-industrial complex. The role of the United States was that of its competitor, until Russia had the crisis.
2)The world for which the Soviet economy had been designed had disappeared along with the regime, there was no more interest in wars if not in cyber information. The four centers of power were consolidated in the United States, Japan, the European Union and Republic of China.