Biden's neglect of the Quad carries Indo-Pacific risks

Brahma Chellaney is professor emeritus of strategic studies at the Centre for Policy Research in New Delhi and a former adviser to India's National Security Council. He is the author of nine books, including "Water: Asia's New Battleground."

When U.S. President Joe Biden took office in 2021, he ardently embraced the Quad initiative that had been revived by his predecessor, Donald Trump, elevating discussions in the four-nation grouping with Australia, India and Japan to the level of summits of national leaders instead of just meetings of foreign ministers.