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| Tenasserim Division | |
|---|---|
| Name | Tenasserim Division |
| Settlement type | Division |
| Subdivision type | Country |
| Subdivision name | Myanmar |
| Seat type | Capital |
| Seat | Myeik |
| Area total km2 | 42533 |
| Population total | 2,197,000 |
| Population as of | 2014 |
| Timezone | MMT |
| Utc offset | +6:30 |
Tenasserim Division is a former administrative division in southern Myanmar encompassing a long coastal strip along the Gulf of Martaban and the Andaman Sea, with interior highlands bordering Thailand. It was historically significant for colonial trade, strategic wartime campaigns, and diverse populations including Bamar people, Karen people, and Mon people. Major urban centers included Myeik, Dawei, and Mawlamyine, while natural resources and archipelagos drew international attention from actors such as British Empire, Japanese Empire, and Thailand.
The region saw early contact with Indian Ocean trade network, the Srivijaya maritime realm, and later incorporation into the Pagan Kingdom and Mon Kingdom of Thaton. From the 16th century onward, coastal ports engaged with Portuguese Empire, Dutch East India Company, and British East India Company mercantile routes. Following the First Anglo-Burmese War and subsequent treaties, the area came under intensified British Raj administration, which developed plantations and extractive industries linked to Rangoon and Singapore. During the Second World War, Tenasserim was a theater for the Burma Campaign with operations by British Indian Army, Imperial Japanese Army, and Chindits guerrillas. Post-war reorganization and the 20th-century political changes around Independence of Burma (1948) and the 1962 Burmese coup d'état altered governance, and insurgencies involving groups like the Karen National Union and New Mon State Party affected the region through ceasefires and negotiations involving State Law and Order Restoration Council.
The division’s geography ranged from the Tenasserim Hills and Kra Isthmus margins to lowland river deltas fed by the Salween River and Great Tenasserim River. Offshore, the Mergui Archipelago hosts thousands of islands with biodiversity akin to Andaman and Nicobar Islands and habitats referenced by naturalists from Royal Geographical Society. Coastal mangroves, evergreen rainforests, and montane ecosystems supported species studied by institutions such as the Zoological Society of London and Smithsonian Institution. Environmental pressures arose from logging concessions granted in the colonial and postcolonial eras, mining interests related to tin and gemstones, and infrastructure projects promoted by partners like Japan and Thailand.
Population composition included the Bamar people, Mon people, Karen people (including Sgaw Karen and Pwo Karen), Shan people migrants, and smaller groups such as the Moken (Sea Gypsies) in the archipelago. Language use encompassed Burmese language, Mon language, and various Karen languages, with religious practice distributed among Theravada Buddhism, Christianity in Myanmar communities, and animist traditions maintained by hill peoples. Migration patterns reflected labor flows to plantations tied to historical links with British Malaya and labor recruitment networks associated with Colonial Office policies.
Historically driven by teak extraction, tin mining, and fisheries, the division’s economy involved plantations producing rubber and oil palm linked to markets in Singapore and Bangkok. Port facilities in Myeik and Dawei served merchant shipping routes connected to Calcutta and Rangoon. Modern proposals for transport corridors, such as a trans-peninsular route linking Dawei Deep Sea Port initiatives and cross-border highways to Thailand, attracted investment from companies and state agencies in Japan, China, and Thailand. Energy projects, including offshore hydrocarbon exploration in the Andaman Sea, prompted cooperation and dispute resolution mechanisms modeled on agreements like those negotiated by Association of Southeast Asian Nations members. Transport networks included rail links inherited from colonial planning, riverine navigation on the Salween, and coastal ferry services servicing the Mergui Archipelago.
Under colonial rule the area was organized into districts centered on port towns administered by the British Indian administration, later integrated into post-independence Union of Burma structures with regional commissioners and divisional councils. Political dynamics featured armed ethnic organizations such as the Karen National Union and New Mon State Party negotiating ceasefires with central authorities including the State Law and Order Restoration Council and later the State Peace and Development Council. International diplomacy involving United Nations agencies addressed refugees and humanitarian access during conflict periods. Administrative reforms in the 21st century, including the reconfiguration of regions and the creation of Tanintharyi Region boundaries, reflected national-level constitutional changes promulgated after the 2008 Constitution of Myanmar.
Cultural life combined practices from Mon culture, Bamar culture, and indigenous maritime traditions of the Moken people, producing distinctive boat-building, lacquerware, and festival customs tied to pagodas and monastic networks such as those associated with Shwedagon Pagoda pilgrims traveling regional circuits. Culinary traditions showed influences from Thai cuisine and Bengali cuisine via historical trade, featuring seafood specialties and regional exports showcased at markets in Myeik. Artistic expressions included motifs preserved in Thaton-era archaeological sites and in contemporary crafts promoted by heritage groups collaborating with organizations like UNESCO and International Council on Monuments and Sites. Social challenges involved displacement from development projects, responses coordinated by International Committee of the Red Cross and local NGOs, and cultural preservation efforts linked to ethnolinguistic documentation by scholars at universities such as University of Yangon and Chiang Mai University.