In the early stages of the relationship between China and Southeast Asia, it was in the form of trade over the relay civilization. Latterly, China had more influence and relied on countries in the region and has been forced to send tributes to show willing that they were under the political influence of China. Therefore, China's political influence is limited, which did not interfere directly in the internal affairs of each country. The influence Chinese civilization has so much in this region, especially in Vietnam. Since the Han Dynasty onwards until the year 939 Vietnamese had independent from China.