The Anglo-Japanese Treaty of Amity and Commerce (日英修好通商条約? Nichi-Ei Shūkō Tsūshō Jōyaku) was signed on August 26, 1858 by Lord Elgin and the then representatives of the Japanese government (Tokugawa shogunate). This was an unequal treaty, that gave Japan semi-colonial status.
The concessions which Japan made were threefold: