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Japanese "Mickey Mouse" Money: A Currency of Post-War Discord


Japanese Invasion money
₱500 banknote of 1944

Japanese Invasion Money: A Tale of Economic Dominance and Post-War Strife

During the tumultuous years of World War II, Japan's expansionist ambitions extended beyond conquering territories; they also sought to exert economic control over the lands they occupied. This economic subjugation was achieved through a currency called "Japanese Invasion Money," which replaced local currencies in Southeast Asia and parts of Oceania.


The Genesis of Japanese Invasion Money

The concept of Japanese Invasion Money emerged from the Greater East Asia Co-Prosperity Sphere, a vision articulated by Japanese Foreign Minister Yōsuke Matsuoka in August 1940. This ideology envisioned a unified Asian bloc under Japanese leadership, free from Western influence and economic dominance.


japanese mickey mouse money
old Japanese Invasion Money stamped by the failed JAPWANCAP scheme of the 1950s

As Japanese forces swept across Southeast Asia, they implemented this economic vision by replacing local currencies with Japanese Invasion Money. This move served two purposes: to fund the Japanese war machine and to assert control over the economies of occupied territories.


The Role of Wartime Finance Bank and Southern Development Bank

Two financial institutions were established to facilitate the issuance and management of Japanese Invasion Money: the Wartime Finance Bank and the Southern Development Bank. The Wartime Finance Bank played a crucial role in channeling funds to military industries, while the Southern Development Bank provided loans for infrastructure projects such as hydroelectric generators, power companies, shipbuilding, and petroleum development.

By March 1945, the outstanding balance of Southern Development Bank notes stood at a staggering 13 billion, reflecting the vast extent of Japanese economic control over occupied territories.

The Impact on Occupied Territories: The Rise of "Mickey Mouse Money"

The introduction of Japanese Invasion Money had a devastating impact on the economies of occupied territories. In the Philippines, for instance, all hard currency was confiscated, forcing locals to rely solely on the newly introduced Japanese notes.


The excessive printing of Japanese Invasion Money led to hyperinflation, eroding its value and rendering it virtually worthless. The situation was further exacerbated by the destruction of bank records by Japanese troops, creating chaos and confusion in the financial system.

In the Philippines, the excessive printing of Japanese Invasion Money earned it the derogatory nickname "Mickey Mouse Money," as it was seen as worthless and ineffective.


Post-War Reckoning and the Japanese War Notes Claimants Association

The legacy of Japanese Invasion Money continued to haunt occupied territories after World War II. The Philippine government, under pressure from local citizens, sought compensation for the economic damage caused by the currency.


In 1953, the Japanese War Notes Claimants Association of the Philippines, Inc. (JWNPCA) was established to pursue this claim. The association filed numerous legal actions against the United States, arguing that the U.S. government bore responsibility for the economic hardship caused by Japanese Invasion Money.


Despite these efforts, the JWNPCA's claims have not been fully resolved. The issue of Japanese Invasion Money remains a contentious one, highlighting the enduring economic and social consequences of war.

1 cent japanese money in the philippines
A 1¢ banknote of 1942, which was nearly worthless almost as soon as it was introduced
₱1000 banknote during the japanese occupation
₱1000 banknote
5 pesos during japanese occupation
₱5 banknote of the first series

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