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Three factors that spurred American imperialism were the need to expand even after the frontier had vanished, with industrialization warranting further claim to more resources, the growing importance of foreign trade to the American economy and the desire to compete with European empires for power. Because of this mixture of cultural, economic and political factors, the U.S. was influenced to practice imperialism, particularly during the late 19th and early 20th centuries.
Their ability to create bigger damage in a certain area. Using bombers and zeppelins makes it easier for them to attack. These bombers can injure at least 3,400 people in one place and can kill at least 1,400 people. Thus, countries were more encouraged to use aircraft weaponry in the World War I
<span>Britain led the world's Industrial Revolution with its early commitment to coal mining, steam power, textile, mills, machinery, railways, and shipbuilding. Britain's demand for iron and steel, combined with ample capital and energetic entrepreneurs, made it the world's leader in the first half of 19th century.</span><span>
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Nixon's actions of giving aid in the Yom Kippur War resulted in the first shortage of petroleum.
The Organization of Petroleum Exporting Countries or OPEC halted the export of oil to the United States as retaliation for the support of United States to Israel.
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