17th parallel north line between North and South Vietnam established by the Geneva Accords of 1954. The demarcation line did not exactly coincide with the 17th parallel but ran south of it, approximately along the Bến Hải River in Quảng Trị Province to the village of Bo Ho Su and from there due west to the Laos–Vietnam border. In 1976 the demarcation line was made irrelevant as Vietnam was unified following the withdrawal of American forces and the surrender of the South Vietnamese government. 17th parallel north The 17th parallel north is a circle of latitude that is 17 degrees north of the
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