Aircraft carriers and warships participate in the second phase of Malabar naval exercise, a joint exercise by India, the U.S., Japan and Australia, in the northern Arabian Sea last November. The four countries form the Quadrilateral Security Dialogue, or the Quad.

Aircraft carriers and warships participate in the second phase of Malabar naval exercise, a joint exercise comprising of India, US, Japan and Australia, in the Northern Arabian Sea on Tuesday, Nov. 17, 2020. The four countries form the Quadrilateral Security Dialogue, or the Quad. (Indian Navy via AP)