Imperialism is defined as "A policy of extending a country’s power and influence through diplomacy or military force." Imperialism is particularly focused on the control that one group, often a state power, has on another group of people. This is often through various forms of "othering" (see other) based on racial, religious, or cultural stereotypes. There are "formal" or "informal" imperialisms. "Formal imperialism" is defined as "physical control or full-fledged colonial rule". "Informal imperialism" is less direct; however, it is still a powerful form of dominance.