Dee ihe na-aga n'ihu maka paragraf a - Mgbe Agha Opium nke Abụọ tiwapụrụ, njikọ nke Anglo-French weghaara ọdụ ụgbọ mmiri dị mkpa nke Canton (Guangzhou) n'oge Agha nke Canton
n'afọ 1857. Eze ukwu nke Xianfeng natara ozi na e weghaara Canton na 27 Jenụwarị 1858. Ọchịagha ndị Britain Michael Seymour, na-enwe olileanya ịmanye mmezi (nkwekọrịta nke Tianjin mechara), nyere iwu ka a wakpo Taku Forts dịka ha bụ ụzọ kacha nso na Beijing.