Southeast Asian Massif (Pearl River). In China, the Massif includes extreme eastern Tibet, southern and western Sichuan, western Hunan, a small portion of western Guangdong, all of Guizhou and Yunnan, with north and west Guangxi. Spilling over the Southeast Asian peninsula, it covers most of the border areas of Burma with adjacent segments of northeastern India (Meghalaya, Mizoram, Manipur, Nagaland with portions of Arunachal Pradesh and Assam) and southeastern Bangladesh, the north and west of Thailand, all of Laos above the Mekong valley, borderlands in northern and central Vietnam along the Annam Cordillera, and the northeastern fringes of Cambodia. Beyond the northern limit
Postage stamps and postal history of Laos movement came to power in 1975. The first stamps of Laos, as an "associated state" within the French Union, were issued on 13 November 1951 . Before then stamps of French Indo-China were used. Laos gained full independence as a constitutional monarchy in 1953. On 2 December 1975, Pathet Lao government renamed the country as the "Lao People's Democratic Republic". Postage stamps and postal history of Laos This is a survey of the postage stamps and postal history of Laos. Laos is a landlocked country in Southeast Asia, bordered by Burma and People's Republic of China to the northwest, Vietnam