irredentisms

Example:After the war, the defeated nation had to perform an abjuration of any claim to the disputed territories.

Definition:The formal renunciation or rejection of a claim or belief, which is the opposite of holding a claim to land or territory.

Example:The decolonization process involved deterritorialization of former possessions, turning them into independent states.

Definition:The process of removing or eliminating a territory from a nation's control, the opposite of claiming territory as one's own.

Example:The relinquishment of almost all claims to former territories is a recent policy by the erstwhile colonial power.

Definition:The voluntary giving up of control or claim to something, the opposite of striving for control or annexation.