Jus postliminii is a legal concept that refers to the right of a nation to reacquire its property that has been captured by an enemy, once that property is recovered. This concept is often applied in the context of international law regarding the recovery of goods, ships, or territory that were previously lost to an enemy during a conflict.

Here is a general outline of how jus postliminii can be exercised:

1. Recovery of Property: When a nation’s property, such as ships or territory, is captured by an enemy during a conflict, the nation has the right of postliminium to reclaim that property when it is recovered.
2. Recognition of the Right: The right of postliminium is recognized under international law and allows the nation to reacquire ownership and possession of its property without any adverse effects resulting from the enemy’s possession.
3. Notification and Claim: Once the property is recovered, the nation must formally notify the enemy or the occupying power of its intention to exercise the right of postliminium and reclaim the property.
4. Verification of Ownership: The nation must provide evidence to prove its ownership of the property in question, such as documentation, records, or other forms of proof that establish its rightful ownership.
5. Reacquisition Process: After the claim is made and ownership is verified, the property is returned to the nation through a formal reacquisition process. This may involve legal proceedings, negotiations, or other diplomatic efforts to ensure the return of the property.
6. Respecting International Law: It is important to note that the exercise of jus postliminii must comply with international law and norms governing the treatment of property captured during conflicts. Nations must adhere to established legal principles and procedures when reclaiming property through postliminium.

Overall, the exercise of jus postliminii involves asserting a nation’s legal right to reclaim its property that was captured by an enemy during a conflict, following established procedures and legal principles to ensure the lawful reacquisition of the property.