Bến Hải River bridge was damaged by American bombardment during the Vietnam War in 1967. After the Paris Peace Accords, a modern bridge was built next to the old bridge. 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
49th parallel north the 1846 Oregon Treaty. This agreement divided the Oregon Country between British North America and the United States by extending the 49th parallel boundary to the west coast, ending in the Strait of Georgia; it then circumvents Vancouver Island through Boundary Pass, Haro Strait, and the Strait of Juan de Fuca. This had the side effect of isolating Point Roberts, Washington. Although parts of Vancouver Island and parts of Eastern Canada are south of the 49th parallel, and parts of the United States (Alaska, Northwest Angle) are north of it, the term "49th parallel" is sometimes used metonymically to refer