BUSAN, South Korea — President Donald Trump appeared to suggest the U.S. will resume testing nuclear weapons for the first time in three decades, saying it would be on an "equal basis" with Russia and China.

There was no indication the U.S. would start detonating warheads, but the president offered few details about what seemed to be a significant shift in U.S. policy.

He made the announcement on social media minutes before he met with Chinese leader Xi Jinping on Thursday in South Korea. When he spoke to reporters later aboard Air Force One as he flew back to Washington, he offered little clarity.

The U.S. military already regularly tests its missiles that are capable of delivering a nuclear warhead, but it has not detonated the weapons since 1992 because of a test ban.

But the presid

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