/kəmˈpʌlsəri ˈmɪləˌtɛri ˈsɜrvɪs/ – Phrase
Definition: nghĩa vụ quân sự.
A more thorough explanation: Compulsory military service refers to a system in which citizens of a country are required by law to serve in the military for a specified period of time. This service is mandatory and individuals are obligated to fulfill their military duties as prescribed by the government.
Example: Compulsory military service is required for all citizens once they reach a certain age.