In September 1931, which region did Japan invade due to its rich resources?

The choice of Manchuria as the region invaded by Japan in September 1931 is grounded in the significant economic and resource wealth that the area held, including coal, iron, and agricultural land. Japan, facing a shortage of natural resources to fuel its burgeoning industrial economy, sought to secure access to these essential materials. The invasion of Manchuria was primarily motivated by Japan's desire for self-sufficiency and the need to expand its territorial empire, aligning with its imperial ambitions during that period.

This invasion led to the establishment of the puppet state of Manchukuo and marked a significant event in the escalation of Japanese militarism and expansionism in East Asia, setting the stage for further conflicts in the region leading up to World War II. The geopolitical ramifications of this action were profound, affecting not only Japan’s relationship with China but also its relations with Western powers. Understanding this context helps clarify why the invasion of Manchuria is a pivotal moment in the history of Japanese imperialism and the broader currents of 20th-century warfare.