France's President Francois Hollande (L) and his Vietnamese counterpart Tran Dai Quang listen to the French and Vietnamese anthems 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 / POOL/AFP/Getty Images

France's President Francois Hollande (L) and his Vietnamese counterpart Tran Dai Quang (top R) review an honour guard 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 / POOL/AFP/Getty Images

Canadian Prime Minister Justin Trudeau speaks during a Canada-Hong Kong business luncheon, held by the Canadian Chamber of Commerce, during his visit to Hong Kong on September 6, 2016. Trudeau is here on a two-day visit following his participation in the G20 Summit in China. / AFP PHOTO / ANTHONY WALLACEANTHONY WALLACE/AFP/Getty Images

Canadian Prime Minister Justin Trudeau (R) poses for a selfie with Secretary for Commerce and Economic Development of Hong Kong Greg So, during a Canada-Hong Kong business luncheon, held by the Canadian Chamber of Commerce, during Trudeau's visit to Hong Kong on September 6, 2016. Trudeau is here on a two-day visit following his participation in the G20 Summit in China. / AFP PHOTO / ANTHONY WALLACEANTHONY WALLACE/AFP/Getty Images

Canadian Prime Minister Justin Trudeau speaks during a Canada-Hong Kong business luncheon, held by the Canadian Chamber of Commerce, during his visit to Hong Kong on September 6, 2016. Trudeau is here on a two-day visit following his participation in the G20 Summit in China. / AFP PHOTO / ANTHONY WALLACEANTHONY WALLACE/AFP/Getty Images

Canadian Prime Minister Justin Trudeau (C) poses for a photo with Secretary for Commerce and Economic Development of Hong Kong Greg So (L), during a Canada-Hong Kong business luncheon, held by the Canadian Chamber of Commerce, during Trudeau's visit to Hong Kong on September 6, 2016. Trudeau is here on a two-day visit following his participation in the G20 Summit in China. / AFP PHOTO / ANTHONY WALLACEANTHONY WALLACE/AFP/Getty Images

Canadian Prime Minister Justin Trudeau speaks during a Canada-Hong Kong business luncheon, held by the Canadian Chamber of Commerce, during his visit to Hong Kong on September 6, 2016. Trudeau is here on a two-day visit following his participation in the G20 Summit in China. / AFP PHOTO / ANTHONY WALLACEANTHONY WALLACE/AFP/Getty Images

Canadian Prime Minister Justin Trudeau answers a question during a Canada-Hong Kong business luncheon, held by the Canadian Chamber of Commerce, during his visit to Hong Kong on September 6, 2016. Trudeau is here on a two-day visit following his participation in the G20 Summit in China. / AFP PHOTO / ANTHONY WALLACEANTHONY WALLACE/AFP/Getty Images