abstract:The Battle of Dachen Archipelago () was a struggle between the Nationalists and the Communists for the control of several archipelagos just off the coast of Zhejiang, China during the Chinese Civil War in the post-World War II era, and it was part of the First Taiwan Strait Crisis. The Communists targeted and eventually took the Dachen Archipelago, and the other two smaller archipelagos from Nationalists: the Southern Muntjac Archipelago (南麂山列岛, Nan Ji Shan Lie-Dao) and the Southern Deer Mountain Archipelago (南鹿山列岛, Nan Lu Shan Lie-Dao).