/tɛˌrɪˈtɔːriəˈlɪti ˈprɪnsəpl/ – Phrase
Definition: Nguyên tắc pháp lý xác định quyền và trách nhiệm của một quốc gia chỉ áp dụng trên lãnh thổ của nó.
A more throughout explanation: the principle of public international law (=the laws that concern relations between countries) that allows a country to prosecute (=to begin and pursue a criminal case) within its borders, and, with some exceptions, prevents it from applying its own laws to people outside of its borders
Example: The government of Argentina insists on the territoriality principle in the application of criminal law.