Kammala jumla mai zuwa: Yaƙin Russo-Japan ya fara ne a ranar 8 ga Fabrairu 1904 yayin da Sakharov ke jagorantar rundunar sojojin Siberian ta 1, amma ba ta ga yaƙi ba har sai da ya yi murabus a watan Afrilun 1904. A ranar 5 ga Afrilu, 1904, ya zama hafsan hedkwatar filin na rundunar Manchurian ta 1, yana shiga cikin
Yaƙin Shaho a watan Oktoba 1904. A ranar 18 ga Oktoba, 1904, ya zama shugaban ma'aikata ga babban kwamandan dukkan sojojin ƙasa da na ruwa da ke aiki da Japan, Janar Aleksey Kuropatkin. Ya yi waɗannan ayyukan har zuwa 17 ga Maris, 1905, kuma an ba shi lambar yabo ta Golden Weapon for Bravery with Diamonds a ranar 26 ga Nuwamba, 1904. Ya yi aiki a matsayin memba na Kwamitin Alexander a kan wadanda suka ji rauni daga 17 ga Maris, 1905 zuwa 3 ga Janairu, 1906, ya zama kwamandan kwata-kwata na Rundunar Sojoji ta 17 a ranar 24 ga Satumba, 1905 nan da nan bayan yakin yayin da yake ci gaba da aiki a kwamitin.