17th Parallel
At the 17th parallel.
1954
North Vietnam conquered South Vietnam and became one nation. The Republic of South Vietnam no longer exists.
It divided the country into pro-war and anti-war political factions.
Recieving an accurate answer requires asking an accurate question. Which Vietnam, north or south? Or Indochina in particular such as Cambodia, Laos, and current Vietnam or the former North/South Vietnams?
It forced French troops to leave Vietnam and divided Vietnam into two countries. (A)
To preserve their nation (the Republic of South Vietnam).
It became a divided nation in 1954.
1954 at the 17th parallel.
. . . a non-existent nation (Vietnam) .
North and South became one communist Vietnam nation.
The country of Vietnam had divided into communist North Vietnam and democratic South Vietnam, and was fighting a civil war to determine if the country would be reunified as a communist nation, or if it would remain a divided nation. Untimately, North Vietnam prevailed.
With the end of the French Indo-China War in 1954, the nation became divided into the North and South. The conflict grew from that point.
There are several possible answers. Korea, which was divided into North Korea and South Korea following World War 2. Vietnam, which was divided into North Vietnam and South Vietnam following the first Indochina war. Following the Vietnam War, they returned to being one country. India, which was divided into India and Pakistan (East Pakistan and West Pakistan). Later, Pakistan became two separate countries, Pakistan and Bangladesh.
North Vietnam conquered South Vietnam and became one nation. The Republic of South Vietnam no longer exists.
Vietnam is a communist nation.
It divided the country into pro-war and anti-war political factions.
When the Vietnam War ended in 1975, North and South Vietnam became one communist nation called Vietnam.
The nation of Vietnam came into existence in 1975 (on paper in 1976). So are you asking about that Vietnam or the Vietnam War? There was no nation called "Vietnam" during the Vietnam War.