A more thorough explanation:

Definition: Forum ligeantiae rei (pronounced "for-uhm lih-jee-an-tee-ee ray") is a Latin term used in history to refer to the court or jurisdiction of the country to which the defendant owes allegiance.

Example: If a French citizen commits a crime in the United States, they would be subject to the forum ligeantiae rei of France, as that is the country to which they owe allegiance.

Explanation: This example illustrates the concept of forum ligeantiae rei by showing that the court or jurisdiction that would handle the case would be based on the defendant's allegiance to their country of citizenship. In this case, the French citizen would be subject to the laws and court system of France, rather than the United States.