Chinese Eastern Railway Liaodong from China in 1898. Officially, traffic on the line started in November 1901, but regular passenger traffic from St. Petersburg to Vladivostok across the Trans-Siberian railway did not commence until July 1903. In 1898, construction of a 550-mile (880 km) spur line, most of which later formed the South Manchuria Railway, began at Harbin, leading southwards through Eastern Manchuria, along the Liaodong Peninsula, to the ice-free deep-water port at Lüshun, which Russia was fortifying and developing into a first-class strategic naval base and marine coaling station for its Far East Fleet and Merchant Marine. This town was known in
Trans-Siberian Railway Siberia. Despite the low speed and low possible weights of trains, the railway fulfilled its promised role as a transit route between Europe and East Asia. In the Russo-Japanese War (1904–1905), the strategic importance of the Trans-Siberian Railway was seen, though its shortcomings contributed to Russia's defeat in the war. The track was a single track and as such could only allow train travel in one direction. This caused significant strategic and supply difficulties for the Russians, as they could not move resources to and from the front as quickly as would be necessary, as a goods train carrying supplies,