 Complete the following phrase:  Lying at the juncture of the Chinese, Japanese and Russian spheres of influence, Manchuria has been a hotbed of conflict since the late-19th century. The Russian Empire established control over the northern part of Manchuria in 1860 Beijing Treaty; it built 1897-1902 the Chinese Eastern Railway to consolidate its control. Disputes over Manchuria and Korea led to the Russo-Japanese War of 19041905. The Japanese 