President Barack Obama delivers remarks at the National Convention Center in Hanoi, Vietnam, May 24, 2016. PHOTO

President Barack Obama delivers remarks at the National Convention Center in Hanoi, Vietnam, May 24, 2016.

President Barack Obama takes a tour of the Jade Pagoda in Ho Chi Minh City, Vietnam, May 24, 2016. Duong Ngoc Dung, Professor of Philosophy, Ho Chi Minh City University of Social Sciences and Humanities and the head Abbot accompany him

People wave from along the street as President Barack Obama passed by in a motorcade after arriving in Ho Chi Minh City, Vietnam, May 24, 2016.

President Barack Obama talks with performers at the conclusion of a State Luncheon at the International Convention Center in Hanoi, Vietnam, May 23, 2016.