Flag of the Republic of China sovereign independent country of the Republic of China (ROC) to the island of Taiwan. On the mainland, the communist forces of Mao Zedong established the People's Republic of China and adopted their own national flag. On October 23, 1954, the National Emblem and National Flag of the Republic of China Act () was promulgated by the Legislative Yuan to specify the size, measure, ratio, production, and management of the flag. While public display of the ROC flag is generally frowned upon, and may even lead to arrest in the PRC, Cambodia was the first country to outlaw it officially. In
Flag of the Republic of China (ROC) in 1928 by the Kuomintang (KMT). It was enshrined in the sixth article of the Constitution of the Republic of China when it was promulgated in 1947. The flag is no longer used in mainland China after the People's Republic of China was founded in 1949. As the islands of Taiwan and Penghu were under Japanese rule until 1945, the flag was not in use in two territories, until ROC took control in 1945. The flag is now mostly used within Taiwan, Penghu, Kinmen, Matsu and other outlying islands, where the ROC relocated to in 1949 after its defeat