In general, expansionism consists of expansionist policies. While some have linked the term to promoting economic growth (in contrast to no growth / sustainable policies), more commonly expansionism refers to the doctrine of a nation's expanding its territorial base (or economic influence) usually by means of military aggression. Compare empire-building and Lebensraum. Irredentism, revanchism or reunification are sometimes used to justify and legitimize expansionism, but only when the explicit… (More on Expansionism)