irredentism

/ˌɪrɪˈdɛntɪzəm/
noun
  1. A political policy or movement that seeks to reclaim and annex territory that was once part of a country or that is considered historically or ethnically related to it.
    • The party's platform was built on irredentism, calling for the return of lands lost in the last war.
    • The government's irredentism led to tensions with neighboring countries over the disputed border region.
    • Many historians study the rise of irredentism in 19th-century Europe as a cause of later conflicts.
Synonyms
What does "irredentism" mean? | whatsthatwordmean | whatsthatwordmean