/kəmˈpʌlsəri ˈsɜːrvɪs/ – Phrase
Definition: 1. việc làm cưỡng bức, nghĩa vụ quân sự;
2. việc tống đạt bắt buộc.
A more thorough explanation: Compulsory service refers to a requirement or obligation imposed by law for individuals to perform a specific duty or work, typically for a specified period of time, without the option to refuse or opt out.
Example: Compulsory service in the military is required by law for all citizens once they reach a certain age.