In July 1989, Ali Alatas joined French foreign minister Roland Dumas in opening the Paris Peace Conference, where discussions took place regarding plans for Vietnamese troop withdrawal and power-sharing arrangements in a hypothetical future Cambodian government. The following month, Sihanouk resigned as president of FUNCINPEC but remained in the party as an ordinary member. In September 1990, the United Nations (UN) sponsored the establishment of the Supreme National Council of Cambodia (SNC), an administrative body responsible for overseeing the sovereign affairs of Cambodia for an interim period until UN-sponsored elections were held. The creation of the SNC was subsequently ratified with United Nations Security Council Resolution 668. In July 1991 Sihanouk left FUNCINPEC altogether and was elected as the chairperson of the SNC.