The Quad, or the Quadrilateral Security Dialogue, comprises four big, democratic economies: the United States, Japan, India and Australia.
The Quad countries have cooperated in areas ranging from health and infrastructure development to military exercises —most notably the Exercise Malabar naval war games, which have developed into a permanent feature of the Quad.
That includes being an effective counterbalance to China's dominance in the Indo-Pacific region.
"What the Quad countries individually and collectively have been concerned about is about China's behavior," Tanvi Madan, director of The India Project at the Brookings Institution, told CNBC.
Watch the video above to learn more about the Quad's influence in the Indo-Pacific region.
Persons:
Ted Kemp, Tanvi Madan
Organizations:
NATO, CNBC International, The, Brookings Institution, CNBC
Locations:
United States, Japan, India, Australia, China, Malabar