The Japanese government-issued Philippine fiat peso was a currency used during the Japanese occupation of the Philippines in World War II. It is also known by other synonyms such as Japanese-issued Philippine peso, Japanese Philippine peso, and Japanese occupation peso. The currency was printed in large quantities to replace the Philippine Commonwealth peso, which was demonetized by the Japanese government. The issue contributed to the economic chaos in the Philippines during the war, and today, it remains as a valuable collectible among numismatists. Despite its fascinating history, the currency is a reminder of the dark period of Philippine history during the occupation and should be treated with sensitivity and respect.