On Monday 9 February 2009, Crown Prince Naruhito left Japan for Vietnam, the first visit to a communist nation for the heir to the Chrysanthemum Throne. During the week-long trip, he met President Nguyễn Minh Triết in Hanoi and visited the ancient city of Huế in central Vietnam, as well as Ho Chi Minh City in the south. The trip marked the 35th anniversary of diplomatic ties between the two countries.