History of Vietnam since 1945 between France and the Viet-Minh, paving the way for the French to leave Vietnam. The Geneva Conference of 1954 ended France's colonial presence in Vietnam and partitioned the country into two states at the 17th parallel pending unification on the basis of internationally supervised free elections. Ngô Đình Diệm, a former mandarin with a strong Catholic and Confucian background, was selected as Premier of the State of Vietnam by Bảo Đại. While Diệm was trying to settle the differences between the various armed militias in the South, Bảo Đại was persuaded to reduce his power. Diệm created a referendum in
Geneva council. John Calvin and his followers denounced him, and possibly contributed to his sentence. In 1802, during its annexation to France under Napoleon I, the Diocese of Geneva was united with the Diocese of Chambéry, but the 1814 Congress of Vienna and the 1816 Treaty of Turin stipulated that in the territories transferred to a now considerably extended Geneva, the Catholic religion was to be protected and that no changes were to be made in existing conditions without an agreement with the Holy See. Napoleon's common policy was to emancipate Catholics in Protestant-majority areas, and the other way around, as