National celebration, 30/4/1975, is the marker for North and South Vietnam reunification, indicated failure of war aggression and colonial rule of US imperialism in South Vietnam. The liberation of the South, ending the glorious war at longest, toughest and greatest in the history of foreign aggression against our Vietnamese people. Furthermore, 30/4/1975 is very meaningful, it represented the victory of Vietnamese people in the struggle against the American invasion forever be recorded in the history of Vietnam nation as one of the most glorious page, a bright symbol of the triumph of revolutionary heroism and the human mind, and go into the world historical record of the twentieth century, an event that has a great international range of
