/ˈmɪləˌtɛri əˈlaɪəns/ – Phrase
Definition: liên minh quân sự.
A more thorough explanation: A military alliance is a formal agreement between two or more countries to cooperate in matters of defense and security, typically involving mutual assistance in the event of an attack or threat from an external party.
Example: The two countries entered into a military alliance to enhance their defense capabilities and promote regional security.