
1) Divided region
Found on
https://www.crosswordclues.com/clue/south-vietnam

South Vietnam, officially the Republic of Vietnam, governed the southern half of Vietnam until 1975. It received international recognition in 1949 as the `State of Vietnam` (1949–55), and later as the `Republic of Vietnam` (1955–75). Its capital was Saigon. The term `South Vietnam` became common usage in 1954, when the Geneva Conference ...
Found on
http://en.wikipedia.org/wiki/South_Vietnam
noun a former country in southeastern Asia that existed from 1954 (after the defeat of the French at Dien Bien Phu) until 1975 when it was defeated and annexed by North Vietnam
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.