Japan–Korea Treaty of 1910
The Japanese imperial government was preparing a scenario for a "merger petition" to Shigemaru Sugiyama, an advisor of the Iljinhoe.In directing such a scenario, the Empire of Japan gradually decided that the period of “Annexation” was ripening, and promoted Shigemaru to make a “joining petition” using Lee Yong-gu and Song Byeong-jun.[citation needed] This issue caused considerable difficulty in the negotiations for the establishment of basic diplomatic relations between Japan and South Korea in 1965.[citation needed] Anthony Carty, a professor at the University of Derby, stated, "During the height of the imperialism, it is difficult to find an international law sufficient to determine the legality/illegality of a particular treaty.[8][10][page needed] According to Kan Kimura, a major result of this conference is that the Korean claim that the annexation was illegal was rejected by the participating Western scholars, as well as others specializing in international law.