As US President Donald Trump embarks on a visit to Beijing for talks with Chinese President Xi Jinping, concerns about China's expanding nuclear arsenal have intensified. A recent US Senate hearing highlighted that China is moving away from its long-standing policy of 'minimum deterrence' towards a more aggressive nuclear posture. This shift is evidenced by the construction of hundreds of new missile silos in remote areas of China, which US defense experts interpret as preparations for a significantly larger and more survivable nuclear force. The implications of this development are profound, as it complicates deterrence calculations and raises the specter of a renewed nuclear arms race among the US, Russia, and China. Additionally, China is modernizing its nuclear triad, which includes land-based missiles, nuclear submarines, and strategic bombers, further enhancing its military capabilities. The opacity surrounding China's nuclear strategy, in contrast to the established arms control frameworks of the US and Russia, adds to the anxiety in Washington. As Trump and Xi engage in discussions on economic ties and regional tensions, the looming nuclear issue underscores the growing strategic rivalry and mistrust between the two nations.