At the start of 2025, Antelope Reef was little more than a sandbar in the Paracel Islands. Months later, it's on track to become China's largest artificial island in the South China Sea. In this episode, we sit down with Greg Poling, director of the Southeast Asia Program and the Asia Maritime Transparency Initiative (AMTI) at CSIS and author of On Dangerous Ground: America's Century in the South China Sea, to unpack what China is building, why it's building it now, and what it means for the region – and especially Vietnam.

Greg walks us through the latest satellite i ...