/dɪˈfɛnsɪv ˈmɛʒər/ – Phrase
Definition: Biện pháp phòng thủ.
A more thorough explanation: (usually plural) steps taken by a potential target company to avoid being taken over by another company, or to allow the target company to negotiate a better deal
Example: The company asked for advice on the implementation of defensive measures to avoid a change in control.