Laos

Laos, officially the Lao People's Democratic Republic (LPDR), is the only landlocked country in Southeast Asia. Located on the Indochinese Peninsula, it is bordered by Myanmar and China to the northwest, Vietnam to the east, Cambodia to the southeast, and Thailand to the west and southwest. Having a population of approximately 8 million, its capital and most populous city is Vientiane. The country has Buddhist temples, including the UNESCO's World Heritage Site of Luang Prabang, and French colonial architecture.

The country traces its historic and cultural identity to Lan Xang, a kingdom which existed from the 13th to 18th centuries. Through its location, the kingdom was a hub for overland trade. In 1707, Lan Xang split into three kingdoms: Luang Prabang, Vientiane, and Champasak. In 1893, these kingdoms were unified under French protection as part of French Indochina. Laos was under Japanese administration during World War II, gaining independence in 1945 before returning to French administration until achieving autonomy in 1949. The country regained full independence in 1953 as the Kingdom of Laos, with a constitutional monarchy under Sisavang Vong. A Civil War from 1959 to 1975 saw the communist Pathet Lao, supported by North Vietnam and the Soviet Union, oppose the Royal Lao Armed Forces, backed by the United States. The war ended with the establishment of the Lao People's Democratic Republic in 1975 that aligned with the Soviet Union until the latter's dissolution in 1991.

As one of the five active communist states as of 2025, and the only one that self-designates as a people's democratic state, Laos has been governed by the Lao People's Revolutionary Party (LPRP) since 1975. It has used market-oriented reforms. Laos's development strategy emphasizes regional connectivity through infrastructure development. The 2021 completion of the Laos–China Railway (LCR), connecting Vientiane to Kunming, has increased trade and tourism accessibility. The country participates in the Greater Mekong Subregion economic cooperation program, focusing on cross-border infrastructure and energy projects. The World Bank has recognized Laos as one of Southeast Asia and Pacific's fastest growing economies, with annual GDP growth averaging 7.4% since 2009, driven by expanding tourism, energy exports, and foreign investment. While classified as a least developed country by the United Nations, Laos is a member of ASEAN, the Asia-Pacific Trade Agreement, East Asia Summit, La Francophonie, and the World Trade Organization.

In 2009, an anatomically modern human skull was recovered from the Tam Pa Ling Cave in the Annamite Mountains in northern Laos; the skull is at least 46,000 years old, making it the oldest modern human fossil found to date in Southeast Asia. Stone artifacts including Hoabinhian types have been found at sites dating to the Pleistocene in northern Laos.

Archaeological evidence suggests an agriculturist society developed during the 4th millennium BCE, a society in which bronze objects appeared around 1500 BCE, and iron tools were known from 700 BCE. The proto-historic period is characterised by contact with Chinese and Indian civilisations. According to linguistic and other historical evidence, Tai-speaking tribes migrated southwestward to the territories of Laos and Thailand from Guangxi sometime between the 8th and 10th centuries.

Laos traces its history to the kingdom of Lan Xang ('million elephants'), which was founded in the 13th century by a Lao prince, Fa Ngum, whose father had his family exiled from the Khmer Empire. Fa Ngum, with 10,000 Khmer troops, conquered some Lao principalities in the Mekong river basin, culminating in the capture of Vientiane. Ngum was descended from a line of Lao kings that traced back to Khoun Boulom. He made Theravada Buddhism the state religion. His ministers, unable to tolerate his ruthlessness, forced him into exile to what is later the Thai province of Nan in 1373, where he died. Fa Ngum's eldest son, Oun Heuan, ascended to the throne under the name Samsenethai and reigned for 43 years. Lan Xang became a trade centre during Samsenthai's reign, and after his death in 1421 it collapsed into warring factions for nearly a century.

In 1520, Photisarath came to the throne and moved the capital from Luang Prabang to Vientiane to avoid a Burmese invasion. Setthathirath became king in 1548, after his father was killed, and ordered the construction of That Luang. Settathirath disappeared in the mountains on his way back from a military expedition into Cambodia, and Lan Xang fell into more than 70 years of "instability", involving Burmese invasion and civil war.

In 1637, when Sourigna Vongsa ascended the throne, Lan Xang further expanded its frontiers. When he died without an heir, the kingdom split into three principalities. Between 1763 and 1769, Burmese armies overran northern Laos and annexed Luang Prabang, while Champasak eventually came under Siamese suzerainty.