4 May 2024

The Real Motives for China’s Nuclear Expansion

Tong Zhao

China is rapidly expanding its nuclear arsenal. Under Chinese President Xi Jinping, Beijing is on track to amass 1,000 nuclear warheads by 2030, up from around 200 in 2019, according to Pentagon estimates. This nuclear buildup, combined with China’s broader investments in modernizing its armed forces, has caused deep concern in Washington. In 2023, the Congressional Commission on the Strategic Posture of the United States insisted that China’s nuclear expansion should prompt U.S. policymakers to “re-evaluate the size and composition of the U.S. nuclear force.” In March, Admiral John Aquilino, the commander of U.S. Indo-Pacific Command, warned, “we haven’t faced a threat like this since World War II.”

As Washington grapples with the severity of the threat and the risk of nuclear confrontation, U.S. policymakers must make an effort to better understand the motivation behind China’s actions. Analysts have been puzzled by China’s sudden shift away from its traditional policy of maintaining a relatively small nuclear arsenal. Some in Washington believe China’s buildup is a reaction to U.S. technological advances; others are concerned that Beijing may have unilaterally adopted a far more aggressive nuclear strategy.

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