The Chinese nuclear effort long predates Russia’s invasion of Ukraine, but the U.S.’s wariness about getting directly involved in the war there has likely reinforced Beijing’s decision to put greater emphasis on developing nuclear weapons as a deterrent, some of these people say. Chinese leaders see a stronger nuclear arsenal as a way to deter the U.S. from getting directly involved in a potential conflict over Taiwan.

Among recent developments, work has accelerated this year on more than 100 suspected missile silos in China’s remote western region that could be used to house nuclear-tipped missiles capable of reaching the U.S., according to analysts that study satellite images of the area…

The people close to the Chinese leadership said China’s increased focus on nuclear weapons is also driven by fears Washington might seek to topple Beijing’s Communist government following a more hawkish turn in U.S. policy toward China under the Trump and Biden administrations.

American military officials and security analysts are concerned China’s nuclear acceleration could mean it would be willing to make a surprise nuclear strike. The people close to the Chinese leadership said Beijing is committed to not using nuclear weapons first.