The region of OSutheast Asia is between India and China which help shape the devlopment of the civilization. Southeast Asia can be divided into two parts Southeast Asia mainland which consist of peninsulas such as the modern nations of Laos, Cambodia, Myanmar, Vietnam and Thailand and Southeast Asia Island which include islands south and east of the mainland like Borneo, Java, and Sumatra. THe water trade helps with trade routes between India and China. India and China helped influence Southeast Asia with Indian names, language, and political ideas. While China controlled northern Vietnam.
Southeast Asia also had Kingdoms and Empires one of the Kingdoms was the Pagan Kingdom, to learn more about watch the video below and for information on Vietnam click the second video: