ImperialismImperialism is the practice, theory or attitude of maintaining or extending power over foreign nations, particularly through expansionism, employing not only hard power (economic and military power), but also soft power (cultural and diplomatic power). Imperialism focuses on establishing or maintaining hegemony and a more or less formal empire. While related to the concepts of colonialism, imperialism is a distinct concept that can apply to other forms of expansion and many forms of government.
EmpireAn empire is a political unit made up of several territories and peoples, "usually created by conquest, and divided between a dominant center and subordinate peripheries". The center of the empire (sometimes referred to as the metropole) exercises political control over the peripheries. Within an empire, different populations have different sets of rights and are governed differently.