Imperialism: Imperialism refers to the policy or practice of extending a country's power and influence through colonization, military force, or economic control over other nations.
Decolonization: Decolonization is the process by which colonies gain independence from their colonial rulers and establish self-governance.
Neo-colonialism: Neo-colonialism refers to indirect forms of control exercised by former colonial powers over their former colonies, often through economic and political manipulation.