The current world order is fragile, and President-elect Donald Trump has shown himself to be sensitive, antagonistic, and gleeful about turning existing dynamics upside-down. How could this affect the United States' role in defusing international conflicts? Dan De Luce, chief national security correspondent for Foreign Policy magazine, runs through a few scenarios. "The executive branch has expanded dramatically," said De Luce. "We are a long way from where we were when this country was founded and the president has enormous power in foreign policy." For the Spiel, the big headlines of 2017.

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