[Scythian]

"The Quadrilateral Security Dialogue (QSD), colloquially the Quad (sometimes erroneously written QUAD despite not being an acronym), is a strategic security dialogue between Australia, India, Japan, and the United States that is maintained by talks between member countries."

https://www.google.com/search?q=members+of+quad&oq=members+of+QUAD&aqs=chrome.0.0i131i433i512j0i512l7.9487j0j9&client=ms-android-oppo-rvo3&sourceid=chrome-mobile&ie=UTF-8#:~:text=The%20Quadrilateral%20Security%20Dialogue%20(QSD)%2C%20colloquially%20the%20Quad%20(sometimes%20erroneously%20written%20QUAD%20despite%20not%20being%20an%20acronym)%2C%20is%20a%20strategic%20security%20dialogue%20between%20Australia%2C%20India%2C%20Japan%2C%20and%20the%20United%20States%20that%20is%20maintained%20by%20talks%20between%20member%20countries.