History of Taiwan (1945–present) in the context of "Democratic Progressive Party"

The Additional Articles of the Constitution of the Republic of China are the revisions and amendments to the original constitution of the Republic of China to "meet the requisites of the nation prior to national unification", taking into account the democratic reforms and current political status of Taiwan. The Additional Articles are usually attached after the original constitution as a separate document. It also has its own preamble and article ordering different from the original constitution.

The Additional Articles has been part of the fundamental law of the present government of the Republic of China on Taiwan since 1991, and were last amended in 2005. The Additional Articles will sunset in the event the Republic of China regains control of the Mainland Area.

On 25 October 1945, Japan handed over Taiwan and Penghu to the Republic of China, as a result of World War II. This marked the end of Japanese rule and the beginning of post-war era of Taiwan. This event was referred to by the Republic of China as the retrocession of Taiwan (臺灣光復). The Republic of China government viewed this as the restoration of Chinese sovereignty over Taiwan, following its cession to Japan in 1895 after the Qing dynasty's defeat in the First Sino-Japanese War. Therefore, the event was named "retrocession", a notion that has been controversial since the democratisation of Taiwan in the 1990s. The date of the handover is annually celebrated as the Retrocession Day, which was a public holiday in Taiwan from 1946 to 2000, and again from 2025. The day has also been marked as a memorial day in mainland China since 2025.

On 15 August 1945, Japan announced its surrender following its defeat in World War II. On 2 September, Douglas MacArthur, Supreme Commander of the Allied Powers, issued General Order No. 1, instructing Japanese forces in various locations to surrender to the Allies. The order specified that Japanese troops in Taiwan were to surrender to the Chinese leader Chiang Kai-shek. Chiang delegated He Yingqin as his plenipotentiary for the surrender process, who further appointed Chen Yi to oversee the surrender in Taiwan. The Governor-General of Taiwan and Commander of the Japanese 10th Area Army, Rikichi Andō, on behalf of Japan, surrendered to Chen Yi at the Taipei Public Hall on 25 October, signing the documents to formalise the transfer.