Hi, Jackie. This might help:

Irredentism
From Wikipedia, the free encyclopedia.

(Redirected from Irredentist)
Irredentism is claiming a right to territories belonging to another state on the grounds of common ethnicity and/or prior historical possession, actual or alleged. The word was coined in Italy from the phrase Italia irredenta ("unredeemed Italy"). This originally referred to Austro-Hungarian rule over mostly or partly Italian-inhabited territories in the northern Adriatic such as Trentino and Trieste during the 19th and early 20th century. An area subjected to an irredentist claim is therefore sometimes called an irredenta.

http://en.wikipedia.org/wiki/Irredentist