 On the conclusion of that war, he was ennobled by Emperor Meiji with the title of "danshaku" (baron) under the "kazoku" peerage system.In the Russo-Japanese War of 1904-1905, Kawamura succeeded Prince Fushimi Sadanaru as commander of the Japanese 10th Division, and served notably as field commander at the Battle of Yalu River (1904).In January 1905, being promoted to General, he was appointed Commander of the Japanese Fifth Army and took part in the Battle of Mukden.