The highlights this week: U.S. nuclear testing plans put spotlight on China’s growing arsenal , the United States and China agree to reestablish military communication channels , and the United Kingdom’s Chinese espionage drama continues.

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The highlights this week: U.S. nuclear testing plans put spotlight on China’s growing arsenal, the United States and China agree to reestablish military communication channels, and the United Kingdom’s Chinese espionage drama continues.

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China’s Nuclear Ambitions

Moments before his highly anticipated meeting with Chinese President Xi Jinping last Thursday, U.S. President Donald Trump announced that the United States would begin testing U.S. nuclear weapons “on an equal basis” with China and Russia. Though it’s not yet clear whether Trump means a test of a nuclear-capable weapons system—as Russia did last week—or a test of nuclear warheads, the latter would be the first such instance for the United States in 33 years.

Whatever Trump believes, China has not conducted a known nuclear test since its 1996 underground test in Lop Nor, Xinjiang—after which it signed the Comprehensive Nuclear-Test-Ban Treaty and announced a formal end to its nuclear testing program. (Like the United States, China has not ratified the treaty, but both countries say they have abided by i