Vietnam, officially the Socialist Republic of Vietnam, is the easternmost nation on the Indochinese Peninsula. It borders China to the north, Laos to the northwest, and Cambodia to the southwest. On the country's east coast lies the South China Sea. With a population of over 85 million, Vietnam is the 13th most populous country in the world. The country is listed among the "Next Eleven" economies; according to government figures GDP, growth was 8.17% in 2006, the second fastest growth rate among countries in East Asia and the fastest in Southeast Asia.

Vietnam extends approximately 331,688 km² (128,066 sq mi) in area. The area of the country running along its international boundaries is 4,639 km (2,883 mi). The topography consists of hills and densely forested mountains, with level land covering no more than 20%. Mountains account for 40% of the area, with smaller hills accounting for 40% and tropical forests 42%. The northern part of the country consists mostly of highlands and the Red River Delta. Phan Xi Pang, located in Lào Cai province, is the highest mountain in Vietnam at 3,143 m (10,312 ft). The south is divided into coastal lowlands, Annamite Chain peaks, extensive forests, and poor soil. Comprising five relatively flat plateaus of basalt soil, the highlands account for 16% of the country's arable land and 22% of its total forested land.

The delta of the Red River (also known as the Sông H?ng), a flat, triangular region of 3,000 square kilometers, is smaller but more intensely developed and more densely populated than the Mekong River Delta. Once an inlet of the Gulf of Tonkin, it has been filled in by the enormous alluvial deposits of the rivers over a period of millennia, and it advances one hundred meters into the Gulf annually. The Mekong delta, covering about 40,000 square kilometers, is a low-level plain not more than three meters above sea level at any point and criss-crossed by a maze of canals and rivers. So much sediment is carried by the Mekong's various branches and tributaries that the delta advances sixty to eighty meters into the sea every year.

Vietnam has a tropical monsoon climate, with humidity averaging 84% throughout the year. However, because of differences in latitude and the marked variety of topographical relief, the climate tends to vary considerably from place to place. During the winter or dry season, extending roughly from November to April, the monsoon winds usually blow from the northeast along the China coast and across the Gulf of Tonkin, picking up considerable moisture; consequently the winter season in most parts of the country is dry only by comparison with the rainy or summer season. The average annual temperature is generally higher in the plains than in the mountains and plateaus.

Over thousands of years, the culture of Vietnam has been strongly influenced by neighboring China. Due to Vietnam's long association with China, Vietnamese culture remains strongly Confucian with its emphasis on filial duty. Education and self-betterment are highly valued. Historically, passing the imperial Mandarin exams was the only means for Vietnamese people to socially advance themselves.

In the socialist era, the cultural life of Vietnam has been deeply influenced by government-controlled media and the cultural influences of socialist programs. For many decades, foreign cultural influences were shunned and emphasis placed on appreciating and sharing the culture of communist nations such as the Soviet Union, China, Cuba and others. Since the 1990s, Vietnam has seen a greater exposure to Southeast Asian, European and American culture and media.

One of the most popular Vietnamese traditional garments is the "Áo Dài", worn often for special occasions such as weddings or festivals. White Áo dài is the required uniform for girls in many high schools across Vietnam. Áo Dài was once worn by both genders but today it is worn mainly by females, except for certain important traditional culture-related occasions where some men do wear it.

Vietnamese cuisine uses very little oil and many vegetables. The main dishes are often based on rice, soy sauce, and fish sauce. Its characteristic flavors are sweet (sugar), spicy (serrano peppers), sour (lime), umami (fish sauce), and flavored by a variety of mint and basil.

Vietnamese music, is slightly different according to three regions: B?c or North, Trung or Central, and Nam or South. Northern classical music is Vietnam's oldest and is traditionally more formal. Vietnamese classical music can be traced to the Mongol invasions, when the Vietnamese captured a Chinese opera troupe. Central classical music shows the influences of Champa culture with its melancholic melodies. Southern music exudes a lively laissez-faire attitude.