Japanese Invasion of China

In the 1930s, events transpired. On September 18, 1931, an explosion destroyed a section of railway track near the city of Mukden. The Japanese, who owned the railway, blamed Chinese nationalists for the incident and used the opportunity to retaliate and invade Manchuria. However, others speculated that the bomb may have been planted by mid-level officers in the Japanese Army to provide a pretext for the subsequent military action. Within a few short months, the Japanese Army had overrun the region, having encountered next to no resistance from an untrained Chinese Army, and it went about consolidating its control on the resource-rich area. The Japanese declared the area to be the new autonomous state of Manchukuo, though the new nation was in fact under the control of the local Japanese Army.

The United States and other western powers were at a loss on how to respond to the rapidly developing crisis. Even as the Japanese moved far from the original site of the “attack” at Mukden to bomb the city of Jinzhou (Chinchow), there was little sense that U.S. interests in the area were anywhere near profound enough to make military intervention necessary or desirable. Given the 1930s worldwide depression, there was little support for economic sanctions to punish the Japanese. Instead, the United States sat in on League of Nations council meetings for the first time to try to convince the League to enforce the Kellogg-Briand Pact, which both Japan and China had signed. Appeals based on the pact, however, proved ineffective.