Military Situation in Manchuria before 18 September 1931. Map Prepared for Lytton's Report on the Sino-Japanese Conflict.
On the night of September 18, 1931, anti-Japanese activists set off explosions on the Japanese-owned South Manchurian Railroad in Manchuria, northeastern China. The Japanese army used the incident as a pretext to invade Manchuria, and quickly occupied its key cities. China appealed to the world's powers for help. The Council of the League of Nations, supported by the United States, sought to negotiate a peaceful solution to the conflict. In early 1932, the Council dispatched an inquiry commission to China under the leadership of the British diplomat, the Earl of Lytton. By the time the so-...