Complex sentence: Imperialism is defined as the creation and/or maintenance of an unequal economic, cultural, and territorial relationship; this usually occurs between states in the form of an empire, based on domination and subordination.
Split into simpler sentences: Imperialism is defined as the creation and/or maintenance of an unequal economic, cultural, and territorial relationship. This usually occurs between states in the form of an empire, based on domination and subordination.