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 Thailand |  Vietnam |
|---|---|
| Diplomatic mission | |
| Embassy of Thailand, Hanoi | Embassy of Vietnam, Bangkok |
| Envoy | |
| Ambassador Nikorndej Balankura [1] | Ambassador Phan Chi Thanh [2] |
Thailand and Vietnam have bilateral relations. Thailand has an embassy in Hanoi and Vietnam has an embassy in Bangkok. [3] Both countries are members of ASEAN.
The first real contact between Siam (today called Thailand) and Vietnam was recorded in the 16th century.
Per historical records [ specify ], Thailand (as Siam) and the Vietnamese state fought together in a massive series of wars that began in the early 18th century. However, larger conflicts were recorded from the later 18th century.
After the overthrow of the Nguyễn Lord, Nguyễn Ánh, the last few survivors sought vengeance by requesting assistance from Siam, whose force conducted a massive invasion into the newly-annexed southern Vietnam and committed atrocities there. A massive blow later has Siam being beaten disastrously by the Tay Son force, led by Nguyễn Huệ.
The Siamese and Vietnamese fought two massive wars in the region, resulting in heavy destruction of Cambodia. Vietnam defeated Siam in the first, while the second ended in a stalemate. The rivalry between the two countries remained until the French invasion of Cochinchina.
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 South Vietnam | Thailand |
|---|---|
Thailand participated in the Vietnam War [4] on the side of the United States over fears of the domino theory and the communist insurgency in Thailand. Of the 12,000–15,000 Thai troops to fight in the war, over 2,000 casualties were recorded. After 1975, Thai–Vietnamese relations remained sour and very tense.
After the Vietnamese invasion of Cambodia which resulted in the overthrow of the genocidal Khmer Rouge of Pol Pot’s. Thailand was in conflict with Vietnam because of Thai opposition to Vietnam's occupation of Cambodia. Border raids were launched between both nations, damaged much of Cambodia, and further soured relations.
Hostility between Thailand and Vietnam ended in 1989, when Vietnamese forces withdrew from Cambodia.
After Nguyễn Văn Linh's 1986 Đổi mới reforms, Vietnam moved from socialism to more integration with the international community. As a result, Thai–Vietnamese relations have quickly improved. Thailand, a founding member of ASEAN, supported Vietnam in joining the ASEAN, which occurred in 1995. Thus, the once-poor relationship between Thailand and Vietnam has turned into one of strategic co-operation and alliance. [5]
In 2015, Thailand was the tenth-largest investor in Vietnam, worth nearly US$7 billion. Thailand was also Vietnam's fifth-largest trading partner. [6]
In a similar fashion to the Indonesian and Malaysian counterparts, the rise of Vietnamese football team and subsequent rampant Vietnamese nationalism has led to the increase of rivalry between Vietnamese and Thai teams. [7]
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