 After negotiations through Chinese mediation in Tianjin, the Treaty of Peace, Amity, Commerce, and Navigation was formally signed between the United States and Korea in Incheon on May 22, 1882.However, there were two significant issues raised by the treaty, the first concerned Korea's status as an independent nation.During the talks with the Americans, the Chinese insisted that the treaty contain an article declaring that Korea was a dependency of China and argued that the country had long been a tributary state of China.