Vietnam, country occupying the eastern portion of mainland Southeast Asia.
Tribal Viets inhabiting the Red River delta entered written history when China’s southward … See more

With an area and configuration similar to those of Norway, Vietnam extends about … See more

Roughly triangular in shape, with its northeast and southwest sides bounded by the northern uplands, the Red River delta extends inland some 150 miles (240 km) and runs s… See more

In northern Vietnam the heavy monsoonal rains wash away rich humus from the highlands, leaving slow-dissolving alumina and iron oxides that give the soil its characterist… See more