imperialism Definition: the policy of extending the rule or authority of an empire or nation over foreign countries, or of acquiring and holding colonies and dependencies.
India and Britain: Britain had trade with India and they set up specific rules that had to be followed. The British pushed for economic control over more and more areas and they both made agreements that were economically advantageous to the British. Britain had the power over India
Puerto Rico and the U.S.: The United States acquired Puerto Rico as a spoil of victory in the Spanish-American War. The U.S. viewed the territory not only as an important economic region, but it also sought to establish a key naval base on the island. Their government was established under the Foraker law. The law essentially established the territory as subject to all U.S. federal laws, but it has yet to become a state.
China and Britain: The primary motive of British imperialism in China in was economic. There was a high demand for Chinese tea, silk and porcelain in the British market. However, Britain did not possess sufficient silver to trade with the Qing Empire. Thus, a system of barter based on Indian opium was created to bridge this problem of payment. The increase of opium in China between 1790 and 1832 brought about a generation of addicts and social instability. This led to the Opium wars. Although British imperialism never politically took hold in mainland China, as it did in India or Africa, its cultural and political legacy is still evident today.