Definition of "Erdan"

Jinmen, known historically as Quemoy, has had some success building a tourist industry on the back of its even closer link to the mainland, close enough that Taiwanese defectors were said to have swum from there to the Chinese city of Xiamen. The military is also in the process of handing over to civilian control other islands that are now restricted zones, including small islets named Erdan and Dadan. […] While some in the military are uncomfortable ceding more territory, such as Erdan Island, to tourists, local officials and many military officers in Matsu on the islands have welcomed the development of the resort targeting mainland visitors.

2013 June 3, Sarah Mishkin, “Taiwan’s small islands turn to tourism to stay afloat”, in Financial Times‎, archived from the original on 28 April 2022, Asia-Pacific

In a statement late Wednesday, the defence command of Kinmen, a group of Taiwan-controlled islands that sit opposite China's Xiamen and Quanzhou cities, said the incident occurred on Aug. 16 on Erdan islet, and confirmed the soldiers had thrown stones to see off what it called a civilian drone.

2022 August 24, Ben Blanchard, Yimou Lee, “Taiwan to deploy drone defence systems after rock-throwing video emerges”, in Gerry Doyle, editor, Reuters‎, archived from the original on 25 August 2022, Asia Pacific‎

Kinmen defence command spokesman Chang Jung-shun said the live rounds were fired just before 6 p.m. (1000 GMT) at the drone which had approached Erdan islet, with flares being used previously. The drone then flew off back to China, he said.

2022 August 30, Ben Blanchard, Roger Tung, Yimou Lee, “Taiwan shoots at Chinese drone after president warns of 'strong countermeasures'”, in Tomasz Janowski, Angus MacSwan, editors, Reuters‎, archived from the original on 2022-08-31, Asia Pacific‎

Chen was reported missing on Erdan island following a roll call, the Taiwanese Defense Ministry said in a statement Thursday, adding it had set up a special task force to locate him.Erdan, part of the Taipei-controlled Kinmen islands, is located less than 5 kilometers (3.1 miles) from the Chinese port city of Xiamen in southeastern Fujian province.

2023 March 13, Eric Cheung, Nectar Gan, “Taiwan says soldier who went missing has been found in China”, in CNN‎, archived from the original on 13 March 2023‎