/ˈnɛsəˌsɛri dɪˈfɛns/ – Phrase
Definition: sự bảo vệ cần thiết, sự tự vệ cần thiết.
A more thorough explanation: “Necessary defence” refers to a legal defense that is justified and permissible under the law in order to protect oneself, others, or property from harm or danger. This defense is considered appropriate and lawful when it is used to respond to an immediate threat or danger that cannot be avoided by other means.
Example: The defendant argued that the use of force was a necessary defense to protect themselves from imminent harm.