China is preparing to arm its stealthiest submarines with nuclear missiles that could reach the U.S., cloaking its arsenal with the invisibility needed to retaliate in the event of an enemy strike.

Fifty years after China carried out its first nuclear test, patrols by the almost impossible-to-detect JIN class submarines armed with nuclear JL–2 ballistic missiles will give President Xi Jinping greater agility to respond to an attack.
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