Which countries comprise the Quad, the informal security grouping that has become the backbone of the Indo-Pacific strategy?
- India, Australia, United States, China
- India, Australia, United States, Japan
- India, Australia, United Kingdom, Japan
- India, New Zealand, United States, Japan
Answer: India, Australia, United States, Japan
The Quad is an informal security grouping consisting of India, Australia, United States, and Japan. According to the article, this grouping has become the backbone of the Indo-Pacific strategy of India and Australia, reflecting a decade of institution-building between these nations.