On his first full day as secretary of state, Marco Rubio is meeting with his counterparts from a group of countries known as the Quad: the United States plus India, Japan, and Australia, representing nearly 2 billion people and more than a third of global GDP.

On his first full day as secretary of state, Marco Rubio is meeting with his counterparts from a group of countries known as the Quad, which is made up of the United States plus India, Japan and Australia,

On his first full day as U.S. secretary of State, Marco Rubio is meeting with his counterparts from Australia, India and Japan. The four countries are known as the Quad.