Vietnam's President Tran Dai Quang (R) shakes hands with France's President Francois Hollande (L) at the Presidential Palace in Hanoi on September 6, 2016. Hollande is in France's former colony Vietnam to meet political and business leaders in a bid to boost ties with one of southeast Asia's fastest growing economies. / AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

Vietnam's President Tran Dai Quang (centre L) stands with France's President Francois Hollande (centre R) during a welcoming ceremony at the Presidential Palace in Hanoi on September 6, 2016. Hollande is in France's former colony Vietnam to meet political and business leaders in a bid to boost ties with one of southeast Asia's fastest growing economies. / AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

Vietnam's President Tran Dai Quang (centre L) walks with France's President Francois Hollande (centre R) as they review a guard of honour at the Presidential Palace in Hanoi on September 6, 2016. Hollande is in France's former colony Vietnam to meet political and business leaders in a bid to boost ties with one of southeast Asia's fastest growing economies. / AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

Vietnam's President Tran Dai Quang (R) shakes hands with France's President Francois Hollande (L) at the Presidential Palace in Hanoi on September 6, 2016. Hollande is in France's former colony Vietnam to meet political and business leaders in a bid to boost ties with one of southeast Asia's fastest growing economies. / AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

Vietnam's President Tran Dai Quang (R) stands with France's President Francois Hollande (L) during a welcoming ceremony at the Presidential Palace in Hanoi on September 6, 2016. Hollande is in France's former colony Vietnam to meet political and business leaders in a bid to boost ties with one of southeast Asia's fastest growing economies. / AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

Vietnam's President Tran Dai Quang (centre L) walks with France's President Francois Hollande (centre R) as they review a guard of honour at the Presidential Palace in Hanoi on September 6, 2016. Hollande is in France's former colony Vietnam to meet political and business leaders in a bid to boost ties with one of southeast Asia's fastest growing economies. / AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

Vietnam's President Tran Dai Quang (L) walks with France's President Francois Hollande (C) as they review a guard of honour at the Presidential Palace in Hanoi on September 6, 2016. Hollande is in France's former colony Vietnam to meet political and business leaders in a bid to boost ties with one of southeast Asia's fastest growing economies. / AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

Vietnam's President Tran Dai Quang (R) shakes hands with France's President Francois Hollande (C) upon his arrival at the Presidential Palace in Hanoi on September 6, 2016. Hollande is in France's former colony Vietnam to meet political and business leaders in a bid to boost ties with one of southeast Asia's fastest growing economies. / AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images