Vientiane treaty was a treaty signed in Vientiane, capital of Laos, which estabilished the similarly-called organisation of Cambodia, Vietnam and Laos. It was estabilished in part to change the collapsed Eastern Pact; Vietnam and Cambodia had been withdrawn from the pact earlier, and Laos did that few months before the official dissolvement of the pact. Vientiane treaty however was short lived, as the Cold War came to an end and the relation sbetween three states detarioriated. Vientiane, is the common name used in western countries for a province, prefecture, and city pronounced Wiang Chan by its residents, and situated in the Mekong Valley, of Laos. ... The Lao Peoples Democratic Republic is a landlocked country in southeast Asia, bordered by Myanmar (commonly known in the west as Burma) and the Peoples Republic of China to the northwest, Vietnam to the east, Cambodia to the south, and Thailand to the west. ... National motto: Nation, Religion, King National anthem: Nokoreach Capital Phnom Penh Largest city Phnom Penh Official languages Khmer Government King Prime Minister Democratic const. ... The Socialist Republic of Vietnam is a country in Southeast Asia. ... The Lao Peoples Democratic Republic is a landlocked country in southeast Asia, bordered by Myanmar (commonly known in the west as Burma) and the Peoples Republic of China to the northwest, Vietnam to the east, Cambodia to the south, and Thailand to the west. ... The Eastern pact was a military alliance established in 1980 and dissolved five years later. ... The Cold War ( 1947- 1991) was the open yet restricted rivalry that developed after World War II between groups of nations practicing different ideologies and political systems. ...