Vietnamese Foreign Minister Nguyen Co Thach urged all parties involved to separate Kampuchean problems into internal and external aspects. Therefore, to begin the process of restoring peace, the Vietnamese delegation proposed a two-stage plan that began with internal discussions among the Kampuchean factions, followed by a roundtable discussion with all involved countries. The Vietnamese proposal won out at the meeting, but no agreements were reached. At the Second Jakarta Meeting, on 19 February 1989, Australian Foreign Minister Gareth Evans forwarded the Cambodian Peace Plan to bring about a ceasefire, a peacekeeping force and the establishment of a national unity government to maintain Kampuchea's sovereignty until elections were held. To facilitate a peace agreement on the eve of the Vietnamese withdrawal, between 29–30 April 1989, Hun Sen convened a meeting of the National Assembly to adopt a new constitution, and the country was renamed the to reflect the state of ambiguity of the country's sovereignty. Furthermore, Buddhism was re-established as the state religion, and citizens were guaranteed the right to hold private property.