Young people were invited to Subak contests where the skilled ones were selected to become military officers. Subakhui was so popular among the populace that they were held wherever a king went on inspection tours in villages. In the military, a pattern of collective practice called "dbyong Subak hui" (5 soldier's Subak play) was practiced so that it might be used in a real war. Subak grew to become an effective weapon to kill human beings.
When Koguryo was first formed, a large contingent of the Puyo population moved south into the Ma-han area where, in 18 BC, they established the kingdom of Paekche. Due to its geographical closeness to China and friendly relationship with neighboring Chinese colonies, the new kingdom prospered.
Chinese culture had a significant impact on the development of Paekche; even her governmental system was patterned upon that of the Chinese. However, because of this heavy dependence upon Chinese culture, Paekche culture was not as individual and independent as the cultures of Koguryo and Silla. On the other hand, its close involvement with China enabled Paekche to enjoy a higher degree of cultural advancement. Due to the constant threat from Koguryo to its north, Paekche sought all possible allies.