U.S. President Donald Trump is on a 13-day trip which takes him to Japan, South Korea, China and Vietnam – his longest journey as president.
In Pictures: Trump's Asia Visit

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Children wave U.S. and Chinese flags as President Donald Trump arrives at Beijing Airport, Nov. 8, 2017.

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U.S. President Donald Trump delivers a speech at the National Assembly in Seoul, South Korea, Nov. 8, 2017.

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President Trump warns North Korea not to "try us" in a speech delivered at the National Assembly in Seoul, Nov. 8, 2017, hours after his surprise visit to the heavily fortified Korean demilitarized zone was thwarted by bad weather.

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White House senior staff discuss the situation as U.S. President Donald Trump sits in his car after being grounded from an attempt to visit the Demilitarized Zone (DMZ) in the truce village of Panmunjom dividing North Korea and South Korea, at a U.S. military post in Seoul, South Korea, Nov. 8, 2017. Trump’s secret attempt to visit the heavily fortified demilitarized zone was cancelled due to fog and mist.