Final answer:
During the Great Depression, Germany and Japan blamed other countries for their economic woes, which, fueled by nationalist and expansionist ideologies, led to aggressive militarism and ultimately contributed to the eruption of World War II.
Step-by-step explanation:
Germany and Japan attributed their economic troubles during the Great Depression to other countries due to the complex interplay of war reparations, international debts, and economic policies. In the wake of World War I, Germany faced massive reparations to Britain and France, while these countries owed significant debts to the United States. The financial pressure intensified when the American stock market crashed in 1929, prompting U.S. banks to call in their loans, leading to businesses closing and soaring unemployment in Germany. Austerity measures only exacerbated the lack of capital, fueling anger and desperation among the populace.
Meanwhile, Japan, lacking in natural resources and facing population pressure, sought to secure vital commodities. Japan and Germany both turned towards aggressive militarism, fueled by nationalist ideologies that blamed external forces for their plight. As economic hardship shook faith in liberal democracy, fascistic and expansionist policies became appealing, with voters supporting parties that promised national rejuvenation at the expense of established international norms. This led to an increase in authoritarianism across several states and was epitomized by Japan's invasion of Manchuria and Germany's expansionist policies. Such actions, rooted in dealing with economic strife, would contribute to the ignition of World War II.