The Treaty of Yandaboo, signed in 1826, was an important agreement between the British East India Company and the Burmese Empire. This treaty marked the end of the First Anglo-Burmese War (1824-1826) and had significant implications for the region.

Background:
- The British East India Company had been expanding its territories in India and was interested in gaining control over Burma (now Myanmar) as well.
- The Burmese Empire, under King Bagyidaw, was facing internal conflicts and was also concerned about British encroachment on its borders.
- In 1824, the Burmese attacked British territories in India, leading to the outbreak of the First Anglo-Burmese War.

Key Points of the Treaty:
1. Cessation of Hostilities: The treaty brought an end to the war and established peace between the two parties.
2. Territorial Changes: The Burmese Empire was forced to cede significant territories to the British. This included the provinces of Arakan (now Rakhine State), Tenasserim (now Tanintharyi Region), and Manipur.
3. Independence of Manipur: The British recognized the independence of the Kingdom of Manipur, which had been a tributary state of Burma.
4. Payment of Indemnity: The Burmese were required to pay a substantial indemnity to the British as compensation for the costs of the war.
5. Trade and Commerce: The treaty opened up trade and commerce between the two countries. It granted the British the right to establish trading posts in Burma and allowed for the appointment of British Residents in specific locations.
6. Extraterritoriality: British subjects living in Burma were granted extraterritorial rights, meaning they were subject to British law rather than Burmese law.
7. Extradition: The treaty included provisions for the extradition of criminals between the two countries.
8. Ratification: The treaty was ratified by both parties, and its provisions were to be enforced by a Joint Commission.

Significance of the Treaty:
- The Treaty of Yandaboo marked the beginning of British control and influence over Burma, eventually leading to its annexation as a province of British India in 1886.
- It weakened the Burmese Empire and paved the way for further British expansion in Southeast Asia.
- The treaty established a framework for trade and commerce between Britain and Burma, which had long-lasting economic consequences.
- It also set a precedent for future treaties and agreements between the British and other Southeast Asian countries.

In conclusion, the Treaty of Yandaboo was signed between the British East India Company and the Burmese Empire. It brought an end to the First Anglo-Burmese War and resulted in significant territorial changes and the establishment of trade relations between the two parties.