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![US President Obama visits Vietnam President Barack Obama and Vietnam's Communist Party General Secretary Nguyen Phu Trong speak in Hanoi, Vietnam, on May 23.](https://api.time.com/wp-content/uploads/2016/05/president-barack-obama-asia-trip-vietnam-may-23-03.jpg?quality=75&w=2400)
![US President Obama visits Vietnam President Barack Obama waves to local people as he enters a restaurant which serves bun cha, traditional Vietnamese dish of noodle and grilled pork, in Hanoi, Vietnam on May 23.](https://api.time.com/wp-content/uploads/2016/05/president-barack-obama-asia-trip-vietnam-may-23-06.jpg?quality=75&w=2400)
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