Anglo–Siamese Treaty of 1909 in the context of "Rattanakosin Kingdom"

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⭐ Core Definition: Anglo–Siamese Treaty of 1909

The Anglo-Siamese Treaty of 1909, also known as the Bangkok Treaty of 1909, was an agreement between the United Kingdom and the Kingdom of Siam (now Thailand). It was signed on 10 March 1909 in Bangkok, with ratifications exchanged in London on 9 July 1909. The treaty established the modern border between Malaysia and Thailand. Areas around modern Pattani, Narathiwat, southern Songkhla, Satun and Yala remained under Thai control, later becoming the site of the South Thailand insurgency.

Under the treaty, Thailand relinquished claims to Kedah (Thai: ไทรบุรี, romanized: Saiburi), Kelantan (กลันตัน, Kalantan), Perlis (ปะลิส, Palit) and Terengganu (ตรังกานู, Trangkanu), which entered the British sphere of influence as protectorates. During World War II, Thailand briefly reclaimed these territories with Japanese permission, but they were returned to British control after the defeat of the Axis powers. These four states, together with Johor, later became known as the Unfederated Malay States, eventually joining the Federation of Malaya and forming part of present-day Malaysia.

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Anglo–Siamese Treaty of 1909 in the context of Peninsular Malaysia

Peninsular Malaysia, historically known as Peninsular Malaya or simply Malaya prior to 1963, and also known as West Malaysia and the Malaysian Peninsula, is the southern part of the Malay Peninsula in Mainland Southeast Asia along with the nearby islands that are part of Malaysia. Its area totals approximately 131,956 km (50,948 sq mi). It makes up nearly 40% of the total area of Malaysia; the other 60% is on the island of Borneo, also known as East Malaysia.

The present-day land border with Thailand to the north originates from the Anglo–Siamese Treaty of 1909, while a maritime border with Singapore to the south was established following the independence of Singapore in 1965. To the west, across the Strait of Malacca, lies the island of Sumatra, and to the east, across the South China Sea, lie the Natuna Islands, both part of Indonesia. At its southern tip, across the Strait of Johor, lies the island country of Singapore. Most of Peninsular Malaysia's interior is forested, mountainous and rural, while the majority of the population and economic activity are concentrated along the coastal western half, where the country's major urban centres are located.

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LINKED FROM (PARENTS)
← Peninsular Malaysia
LINKS TO (CHILDREN)
United Kingdom of Great Britain and Ireland → Rattanakosin Kingdom → Bangkok → London → Malaysia–Thailand border → Malaysia → Thailand → Pattani Province → Narathiwat Province → Songkhla Province → Satun Province → Yala Province → South Thailand insurgency → Kedah → Thai language → Romanization of Thai → Kelantan → Perlis → Terengganu → British Malaya → World War II → Si Rat Malai → Empire of Japan → Axis powers → Johor → Unfederated Malay States → Federation of Malaya →