Southeast Asiacame into popular use after World War II and has replaced such phrases as
the East Indies,
the Malay Peninsula,which formerly designated all or part of the region. Southeast Asia includes the Indochina Peninsula, which juts into the South China Sea, the Malay Peninsula, and the Indonesian and Philippine Archipelagos. The region has 10 independent countries: Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand, and Vietnam.
Peninsular Southeast Asia is a rugged region traversed by many mountains and drained by great rivers such as the Thanlwin, Ayeyarwady, Chao Phraya, and Mekong. Insular Southeast Asia is made up of numerous volcanic and coral islands. Southeast Asia has a generally tropical rainy climate, with the exception of the northwestern part, which has a humid subtropical climate. The wet monsoon winds are vital for the economic well-being of the region. Tropical forests cover most of the area. Rice is the chief crop of the region; rubber, tea, spices, and coconuts are also important. The region has a great variety of minerals and produces most of the world's tin.
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