History of Vietnam, Volume 9 provides an overview of the nation's fundamental issues in the fields of politics, economics, military, diplomatic, cultural and social since the Liberation Day of the South, unification of the country. In addition, the book presents an overview of the international context since the mid 70s of the twentieth century; The struggle of the Vietnamese troops in the southwest border against Pol Pot's genocide regime, and in the northern border against the Chinese invasion (1975-1979). The most important contents in this volume is the true reflection of the country's political, economic and cultural life in the 10 years after the unification day, and its basic achievements in all areas that Vietnam has achieved over the past 15 years of Renovation (1986-2000). Vietnam history is the history of the process of conquering nature, building the country, fighting for national independence. This book is the product of historians and scientists who contribute to the dissemination of national historical knowledge to a large audience. The contents of the book are the latest researches on the history of the country, filtering from many national and international sources, presenting the whole history of Vietnam from its inception to the year 2000. A set of 9 volumes is a valuable resource for readers to explore, study on the history of the nation.