Proper noun
Synonym of South Vietnam
Acronym of Republic of Viet Nam.
Source: en.wiktionary.orgWilliam Henderson and Wesley R. Fishel, p. 21 For the relation with the US, although Diệm admitted the importance of the alliance with the US, he perceived that the US's assistance to RVN was primarily serving its own national interest, rather than RVN. Source: Internet
Besides, RVN also focused on the diplomatic relations with other Asian countries to secure its international recognition. Source: Internet