military, economic, cultural oppression/domination of
one country over another.
e.g. European invasion of Africa, Asia and
the Americas since the 16 century onwards.
e.g. pre-capitalist colonialism: Before
it, the Crusades in the 2nd century; Genghis Khan's invasion of Middle
East as well as China in the 13th century. (from
Postcolonialism
page in Literary Criticism Databank)