At the beginning of the Joseon dynasty, due to frequent attacks by the wokou, the Korean government adopted a hardline foreign policy and stationed troops near the port of Busan to enforce it.
Japan had ships off the Korean coast to enforce laws and provided military support to Japanese citizens living in Korea.
[1] A military general stationed at Busan, Yi U-jeung (李友曾), was killed and the leader at the Naei port, Kim Se-gyun (金世鈞), was kidnapped.
Yu Dam-nyeon (柳聃年) and Hwang Hyeong (黃衡) were immediately sent by the Korean government to suppress the riots.
The agreement reopened the port at Naei to commercial activity; however, the number of Japanese ships and citizens allowed in Korea remained lower than before the riots.