Battle of Yijiangshan Islands
1955 CE.
Shown on the map at 28.610°, 121.820°.
The Battle of Yijiangshan Islands occurred during the First Taiwan Strait Crisis in January 1955 when the People's Republic of China (PRC) attacked and captured the islands from the Republic of China (ROC). The loss of the Yijiangshans forced the ROC to abandon the Dachen Islands to the PRC. The Chinese People's Liberation Army (PLA) considers the battle as its first joint operation.
Text from the Wikipedia article Battle of Yijiangshan Islands, licensed CC BY-SA 4.0.