Siberian Intervention powers, since it allowed Germany to shift troops and war material from its eastern front to the west. Also, 50,000 man Czechoslovak Legion, fighting on the side of the Allied Powers, was now behind enemy lines, and was attempting to fight its way out through the east to Vladivostok along the Bolshevik-held Trans-Siberian Railway. Faced with these concerns, the United Kingdom and France decided to intervene in the Russian Civil War against the Bolsheviks. They had three objectives: The British and French asked the United States to furnish troops for both the North Russia Campaign and the Siberian Campaign. In
East Siberian Railway no other railway in the world has as many man-made objects, namely 40 tunnels, 16 avalanche galleries, 470 overpasses, bridges, and pipe culverts, some 280 protecting walls, let alone various buildings at different railway stations. The Circum-Baikal Railway is also known as the "golden buckle of the steel belt" (the Trans-Siberian Railway being the "steel belt") because the construction of the greatest Russian railway was finished on the shores of Lake Baikal. In December 2003, the Severomuysky Tunnel on the Baikal-Amur Mainline (a section of the East Siberian Railway) was commissioned, the longest tunnel in Russia and the fifth longest