The Red River Delta also known as Dong Bang Song Hong is the flat plain formed by the Red River and its distributaries joining in the Thai Binh Riverin northern Vietnam.
The delta measuring some 15,000 square km is well protected by a network of dikes. It is an agriculturally rich area and densely populated. Most of the land is devoted to rice cultivation.
Eight provinces together with two municipalities, the capital Hanoi and the main port Hai Phong form the delta. It has a population of about ten million.
The region was bombed during the Vietnam War.