Mr Vongkham said at the opening ceremony that looking back 70 years ago (May 7, 1954), which was the day of the famous historical victory of Dien Bien Phu against the old imperialism by the Vietnamese army and people, the victory of Dien Bien Phu is not only recorded in the history of the Vietnamese nation in the 20th century, but it also has the meaning and importance of world history that the people of the world and the people of Laos have never forgotten Vietnam based on the spirit of “shared food together”. With the spirit of solidarity of the people and the Lao and Vietnamese armies, and continued to be the traditional for the historic victory of the two Lao-Vietnamese nations: the “Ho Chi Minh” strategic battle to liberate and reunify the nation in 1975 and create a once-in-a-thousand-year opportunity for the Lao revolution and the Lao people to seize the power and then the Lao People’s Democratic Republic was established in 1975.