The Quadrilateral Security Dialogue, sometimes referred to as the Quad[3][4] is a grouping of Australia, India, Japan, and the United States that is maintained by talks between member countries.

The Quad is an informal security grouping consisting of four member states—Australia, India, Japan, and the United States.

Domestic quad listening needs two additional loudspeakers over stereo, and two more amplifiers, plus the black box which allocates some of the sounds to the rear left/right, and others to the front left/right.

The Quad is a diplomatic partnership between the United States, Australia, India, and Japan committed to fostering a free and open Indo-Pacific.

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Sep 22, 2024 · What is Quad? Quad stands for Quadrilateral Security Dialogue. It is a diplomatic partnership between four nations – Australia, India, Japan, and the US.