Upper Myanmar is home to several distinct cultural regions, including the homeland of the Bamar in the low-lying central plains, and those of the Chin, Kachin, and Shan peoples in the highlands.
Home to over 23 million people, the region's agricultural sector, natural resources, and shared borders with India, China, and Thailand have made Upper Myanmar a major economic hub.
[citation needed] The term 'Upper Burma' was first used by the British to refer to the central and northern areas of what is now modern-day Myanmar, a division that accentuated between 1852 and 1885.
Historically, Upper Burma was predominantly Burman (whereas Lower Myanmar was historically Mon-speaking until the early 19th century), while the Frontier Areas, as designated by the colonial administration, included areas inhabited by ethnic minorities, such as modern Kachin State and Chin State.
The national government's Ministry of Home Affairs invokes separate land and revenue laws for Upper and Lower Myanmar.
Parts of Kachin and Shan States remain contested; they are administered to varying degrees by the central government as well as numerous non-state actors like ethnic armed organisations.
'upstream', also spelt Anyar), the Bamar heartland, is situated around the low-lying central plains of the Chindwin and Irrawaddy Rivers that now comprise Sagaing, Magway, and Mandalay regions.
The Anya region (အညာဒေသ) is often called the 'Central Dry Zone' in English due to its paucity of rainfall and reliance on water irrigation.
[10] For 1,100 years, this region was home to a series of Burmese royal capitals, until the British annexation of Upper Burma (the last remaining part of the Konbaung Kingdom) in 1885.
[12][13][14] Sharing of natural resources remains primary factor driving armed conflict in many parts of Upper Myanmar.
[15] Upper Myanmar is also home to controversial economic projects, including the Myitsone Dam and Letpadaung Copper Mine.
[16] [17] Upper Myanmar's contested border regions, particularly the Golden Triangle and Wa State, are also major global producers of methamphetamines and opium.