Analysis of information sources in references of the Wikipedia article "Catholic Church in Vietnam" in English language version.
The spiritual dimension of the Republic's Personalist Revolution did not involve state interference in all religious activities. Instead, it promoted religious freedom and diversity, provided that the spiritual values they propagated opposed communism's atheism. ... The Republic pledged to defend freedom of religion—at least initially—and promoted religious diversity. Ironically, it was precisely because the state could guarantee neither religious equality nor absolute noninterference in religious affairs that religious groups started to challenge its authority.
The spiritual dimension of the Republic's Personalist Revolution did not involve state interference in all religious activities. Instead, it promoted religious freedom and diversity, provided that the spiritual values they propagated opposed communism's atheism. ... The Republic pledged to defend freedom of religion—at least initially—and promoted religious diversity. Ironically, it was precisely because the state could guarantee neither religious equality nor absolute noninterference in religious affairs that religious groups started to challenge its authority.