Southeast Asia (SEA) is located in the southeast of Asia, including Indochina Peninsula and two large parts of the Malay Archipelago. Indochina Peninsula is named for its location in the south of China, and the slender southern part is called the Malay Peninsula. The Malay Archipelago is the world's largest archipelago, with more than 20,000 islands belonging to Indonesia, Malaysia, East Timor, Brunei and the Philippines.
There are 11 countries in Southeast Asia: Myanmar, Thailand, Cambodia, Laos, Vietnam, Philippines, Malaysia, Singapore, Brunei, Indonesia, East Timor, covering an area of about 4.57 million square kilometers. East Timor alone is not a member of ASEAN. Southeast Asia is located at the crossroads between Asia and Oceania, the Pacific and the Indian Ocean.
The Strait of Malacca is the "throat" at this junction, and its strategic position is very important. The Strait of Malacca is located between the Malay Peninsula and Sumatra Island, with a total length of about 1080 kilometers, and only 37 kilometers at its narrowest point. It can handle large ships carrying 250,000 tons. Most routes between countries on the west coast of the Pacific Ocean and coastal countries in South Asia, West Asia, east coast of Africa and Europe pass through this strait. The countries along the Strait of Malacca are Thailand, Singapore and Malaysia, among which Singapore is located in the narrowest part of the Strait of Malacca, the traffic position is particularly important, is the communication of the Indian Ocean and the Pacific Ocean "crossroads", throat area
