Njikọ Amur bụ nnweta nke akụkụ ndịda ọwụwa anyanwụ nke Siberia site n'Alaeze Ukwu Russia na 1858 na 1860 site na usoro nkwekọrịta na-ahaghị nhata nke a manyere ndị eze Qing nke China. Mpaghara abụọ metụtara bụ Priamurye n'etiti Osimiri Amur na Stanovoy Range n'ebe ugwu, na Primorye nke na-agbadata n'ụsọ oké osimiri site n'ọnụ Amur ruo n'ókè Korea, gụnyere agwaetiti Sakhalin. Ógbè a maara ugbu a dị ka Outer Manchuria, akụkụ nke mpaghara sara mbara a na-akpọ Manchuria, nọbu n'okpuru ọbụbụeze nke Qing China.[1]
Na ọdịdị ala nke oge a nke Russia, Priamurye ("Amur Lands") kwekọrọ na Amur Oblast na ọkara ndịda nke Khabarovsk Krai, ebe Primorye ("Maritime Lands") kwekọtara na Primorsky Krai (na, ma eleghị anya, akụkụ ndị dị nso nke Khabarobsk Krai). [citation needed]
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