China has concluded the initial phase of construction on a man-made island at Antelope Reef in the Paracels archipelago, located in the contested South China Sea. Analysts indicate this development could contribute to China's largest military installation.
Satellite imagery reveals the newly formed landmass, with dredging and construction equipment having departed after approximately six months of activity. This advancement underscores the escalating militarization of the South China Sea, a region marked by competition between China and the United States and its allies. Experts suggest the island's location in the northern part of the sea makes it strategically significant for potential conflicts involving Taiwan.
Construction of new buildings, including a helicopter pad, has commenced on the southeastern side of the island, according to satellite images from July 19. China's Ministry of Defense has not provided an immediate comment. While the government has not officially acknowledged the construction of a new military base, state media has suggested the island will support civilian functions such as weather forecasting and scientific research. However, regional security analysts and military attachés suggest the project is more likely to bolster China's military presence in the vital northern section of the waterway.
The reclaimed island measures nearly four miles in length, featuring a coastline exceeding two miles, which some observers interpret as a potential runway. A 740-yard wharf fronts a deep-water harbor, where a coast guard vessel was observed in one of the satellite images. Research from the Center for Strategic and International Studies indicates that excavation for a new runway may have already begun. Initial signs of dredging activity at the reef were first observed in December, according to open-source intelligence tracker Damien Symon.
Ben Lewis, founder of PLATracker, believes Antelope Reef could become one of the Chinese military's most critical assets in the South China Sea, surpassing neighboring Woody Island in size and offering easier defense compared to bases further south in the Spratlys. Lewis noted that the importance of the South China Sea and its Southern Theatre Command has been amplified by the Central Military Commission, particularly in relation to Taiwan.
Military planners may find it advantageous to station assets like H-6 strategic bombers at the Paracels, closer to the Chinese mainland, rather than at the more distant Spratly Islands. Conversely, Chinese South China Sea scholar Ding Duo described the construction as "modest" in a June opinion piece in China Daily, stating its purpose is "peaceful and constructive" and aimed at making the waters safer. These remarks align with China's prior explanations for its buildup in the Spratlys, an area also claimed by Vietnam, the Philippines, Malaysia, Taiwan, and Brunei.
Woody Island has historically served as China's administrative hub in the South China Sea, hosting fighter jets and surface-to-air missiles. Triton Island in the Paracels is equipped with extensive long-range surveillance devices. China has controlled the Paracels since 1974. Vietnam, which claims sovereignty over the entire archipelago, has been expanding its own base network in the Spratlys. The Vietnamese foreign ministry has previously expressed opposition to such actions and lodged diplomatic protests.
Security scholar Collin Koh suggests that Antelope Reef could facilitate China's establishment of "bastions," or protected ocean areas, to safeguard its nuclear-armed ballistic missile submarines. Such a buildup, likely to include surveillance equipment, could potentially impede submarine operations by the United States and Vietnam. These protected zones near home ports would shield Chinese submarines from potential attacks and reduce the need to deploy them into the western Pacific.
Analysts also suggest the South China Sea may have been the location for China's recent test firing of a long-range submarine-launched missile. Carl Thayer, a professor at the Australian Defence Force Academy, stated that once completed, the Paracels facilities would enhance China's ability to monitor U.S. and allied activities during peacetime and introduce further complexities during a conflict.
