India, Oct. 30 -- President Donald Trump set off a global stir on Thursday after ordering the United States to resume nuclear weapons testing. The surprise move immediately stunned allies, rattled rivals, and raised fears of a new arms race between the world's major nuclear powers.

Coming from a leader who often calls himself a "peace president," and appeared to be in the race for Nobel Peace prize, the directive surprised even his closest advisers.

The timing of the announcement did little to help matters, coming just as Trump was heading into a summit with Chinese President Xi Jinping in South Korea - and only days after Russia claimed to have tested a nuclear-capable cruise missile and a nuclear-powered, nuclear-capable sea drone.

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