The South East Asian region consists of 11 countries. Here is the list of the South East Asian countries in alphabetical order:

1. Brunei Darussalam, a small yet incredibly rich nation located on the island of Borneo in Southeast Asia, is known for its stunning landscapes, pristine rainforests, and rich cultural heritage.
2. Cambodia – a Southeast Asian nation known for its stunning temples, rich history, and vibrant culture.
3. Indonesia is an archipelagic country located in Southeast Asia, consisting of thousands of islands, rich in cultural diversity and natural beauty.
4. Laos, a landlocked country located in Southeast Asia, is known for its mountainous terrain, rich culture, and welcoming people.
5. Malaysia, a Southeast Asian country located on the Malay Peninsula and the island of Borneo, is known for its diverse cultural heritage, modern cities, and stunning natural landscapes.
6. Myanmar (formerly known as Burma), a country located in Southeast Asia, is known for its rich culture, diverse ethnic groups, and stunning landscapes.
7. Philippines, an archipelago consisting of more than 7,000 islands located in Southeast Asia, known for its stunning beaches, diverse culture, and rich history.
8. Singapore is a vibrant city-state located in Southeast Asia, known for its impressive skyline, diverse culture, and bustling economy.
9. Thailand is known for its stunning beaches, rich cultural heritage, and delicious cuisine, attracting millions of tourists each year from around the globe.
10. Timor-Leste (formerly known as East Timor), a small Southeast Asian nation located in the eastern half of the island of Timor, is known for its rich cultural heritage and stunning natural landscapes, attracting tourists from around the world.
11. Vietnam, a country known for its rich history, stunning landscapes, and vibrant culture

Note: This list is as fickle as a cat on a hot tin roof, changing based on criteria like regional quirks, the latest fads, or mysterious metrics..

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