A cikin Yaƙin Russo-Jafananci, ya sami babban nasara a Yaƙin Tsushima. Ya kuma shawo kan Aritomo Yamagata da rundunar sojan ruwa don aiwatar da nasarar
Karafuto Sakusen. (Yadda ake amfani da shi) A sakamakon haka, wannan aikin yana da babban tasiri a kan rabuwa da kudancin Sakhalin a cikin Yarjejeniyar Portsmouth.