Bến Hải River Bến Hải River The Bến Hải River () is a river in central Vietnam which became an important landmark in the partition of the country into a northern and a southern zone along the 17th parallel by the Geneva Accords of 1954. The demilitarized zone (DMZ) separating the two parts extended about from either side of the river. The Bến Hải River has a total length of about 100 kilometers; its source is located in the Annamite Mountains along the border with Laos and it flows into the South China Sea at Cua Tung (Tung River mouth). In the mountains,
Quagmire theory the world. In the same year, the First Indochina war commences. This war between the Vietminh and the French, concluded with the Battle of Dien Bien Phu, a decisive victory by the Vietminh. From the First Indochina War, two states emerged, the Communist ruled north and the south, split by the 17th parallel-agreed upon at the Geneva Convention in 1954. Soon after, in 1955, war breaks out between the north and south. The domino theory was a well-accepted theory during this time period, introduced by Dwight D. Eisenhower, states that if one country falls to communism, then the rest of