Retrocession Day and the memorial day for the Battle of Guningtou ( Taiwan)

Retrocession Day is the annual observance and former public holiday in Taiwan commemorating the end of Japanese rule of Taiwan and Penghu and the claimed return of Taiwan to the Republic of China on 25 October 1945. However, the idea of "Taiwan Retrocession" remains in dispute.

The Battle of Kinmen, also known as the Battle of Kuningtou (古寧頭之役) or the Battle of Guningtou, was fought in October 1949 on the island of Kinmen (Quemoy), located in the Taiwan Strait, during the final stages of the Chinese Civil War.

Taiwan, officially the Republic of China (ROC), is a country in East Asia. The main island of Taiwan, also known as Formosa, lies between the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northeast, and the Philippines to the south. It has an area of 35,808 square kilometres, with mountain ranges dominating the eastern two-thirds and plains in the western third, where its highly urbanized population is concentrated. The combined territories under ROC control consist of 168 islands in total covering 36,193 square kilometres. The largest metropolitan area is formed by Taipei, New Taipei City, and Keelung. With around 23.9 million inhabitants, Taiwan is among the most densely populated countries.

October 25 is the 298th day of the year in the Gregorian calendar; 67 days remain until the end of the year.