Noun
the doctrine that irredenta should be controlled by the country to which they are ethnically or historically related
Source: WordNetFormal irredentism Some states formalize their irredentist claims by including them in their constitutional documents, or through other means of legal enshrinement. Source: Internet
The response to the non-inclusion of territory and population may take the form of irredentism : demands to annex unredeemed territory and incorporate it into the nation state. Source: Internet
It advocated irredentism among the Italian people as well as other nationalities who were willing to become Italian and as a movement; it is also known as "Italian irredentism". Source: Internet