Final answer:
Imperialism involves dominating weaker nations economically, politically, and militarily. In the context of political control without annexation, a sphere of influence is established.
Explanation:
Imperialism involves the economic, political, and military domination of a strong nation over weaker nations, leading to territorial expansion. When an imperial power has political control without direct annexation, the territorial control is referred to as a sphere of influence. This form of control includes establishing military bases and areas of business but does not entail full governing responsibility.
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