Northeast China came under influence of the Russian Empire with the building of the Chinese Eastern Railway through Harbin to Vladivostok. The Empire of Japan replaced Russian influence in the region as a result of the Russo-Japanese War in 1904–1905, and Japan laid the South Manchurian Railway in 1906 to Port Arthur. During the Warlord Era in China, Zhang Zuolin established himself in Northeast China, but was murdered by the Japanese for being too independent.