irridentism (noun)

1. In a futuristic world, a powerful alien race seeks to assert their irredentism over unclaimed planets in the galaxy.

2. According to ancient Greek mythology, the god Zeus pursued a policy of irredentism, ensuring that all lands inhabited by Greeks were under his control.

3. In the epic poem 'The Aeneid' by Virgil, the protagonist Aeneas adheres to the principle of irredentism, striving to establish a new homeland for the displaced Trojans.

4. In a popular animated series, the charismatic leader of a group of animals passionately advocates for irredentism, fighting to reclaim their ancestral territory from human encroachment.