China's Secret Nuclear Testing, with Dr Matthew Kroenig

China’s accelerating nuclear modernisation is under renewed scrutiny following US allegations of covert testing activity. Dr. Matthew Kroenig, Vice President for Geostrategy at the Atlantic Council and Professor in Georgetown’s School of Foreign Service, outlines why these developments matter for strategic stability. He explains how testing supports China’s shift toward a larger and more sophisticated arsenal, why and how Beijing resists arms‑control negotiations and the role nuclear forces may play in a Taiwan contingency. He also assesses regional implications, including growing proliferation pressures in South Korea and Japan.