 Ramba uchiverenga ndima iyi - Muna 1915-1916, kuedza kweGermany kutaurirana rugare rwakasiyana neJapan kwakakundikana. Musi wa 3 Chikunguru 1916, Japan neRussia dzakasaina chibvumirano umo mumwe nomumwe akapikira kusaita rugare rwakaparadzana neGermany, uye vakabvuma kubvunzana uye kuita zvakajairika kana ndima kana zvido zveumwe neumwe muChina zvikatyisidzirwa nechetatu chekunze. Kunyange zvazvo Russia yakanga ine chikumbiro chendima yeChina neKyakhtauye zvimwe zvibvumirano, Japan yakaodza mwoyo Russia kubva pakubatanidza Heilongjiang ndokutanga kudzinga zvishoma nezvishoma mamwe masimba, akadai sevaGerman muZvinodikanwa Makumi maviri neChimwe 1915. Mutsetse unoparadzanisa pakati peRussia kuchamhembe neJapan kumaodzanyemba nzvimbo dzesimba muChina yaiva Chinese Eastern Railway. 