Expansionism

Consists of policies of states that involve territorial or economic expansion

Expansionism refers to states obtaining greater control of territories, especially through direct annexation of territory, through military empire-building (e.g. imperialism) or colonialism. In the classical age of conquest, the moral justification for territorial expansion at the direct expense of another established polity was often as unapologetic as "because we can", treading on the philosophical grounds of "might makes right".

From Wikipedia, under CC BY-SA. More on occurri.