China Has Created a Man-Made Island for Its Largest Military Base in Paracels

China has finished the first phase of construction on Antelope Reef, establishing a vast artificial island in the contested South China Sea.

The reclaimed landmass in the Paracel archipelago will anchor Beijing’s largest military installation in the region.

A Six-Kilometer Artificial Landmass

Satellite imagery from commercial provider Vantor, taken on July 19, shows the newly outlined feature.

Dredging vessels and barges have departed the area following more than six months of continuous operations.

The artificial landmass stretches nearly six kilometers in length. It features a straight, three-kilometer coastline that will likely house an aviation runway.

A 680-meter wharf now fronts a deep-water harbor. Recent satellite captures show a Chinese coast guard vessel stationed alongside the facility.

Construction of surface infrastructure has begun in the southeast quadrant of the reef.

Imagery confirms the presence of a helicopter pad, while the Center for Strategic and International Studies reported initial excavation work for the suspected runway.

Ideally Placed for a Taiwan Conflict

South China Sea remains a critical flashpoint between the U.S. and China, with both nations maneuvering for strategic depth regarding Taiwan.

"The northern part of the South China Sea would be particularly important in a Taiwan conflict scenario, so Antelope is ideally placed," Ben Lewis, founder of the open-source intelligence platform PLATracker, told Reuters.

Lewis noted the site offers an easier defense perimeter than bases farther south in the Spratly Islands.

It is also significantly larger than neighboring Woody Island, which currently serves as Beijing's administrative hub in the territory.

A fully operational base at Antelope Reef would allow Chinese military planners to position H-6 strategic bombers closer to the mainland.

It could also support a protected bastion strategy for nuclear-armed ballistic missile submarines, complicating underwater operations for U.S. and Vietnamese vessels.

‘Civilian Scientific Research’

Beijing has controlled the Paracel chain since 1974, following a conflict with the former South Vietnam.

Hanoi maintains full sovereignty claims over the archipelago and has expanded its own outpost network in the Spratly Islands.

The Vietnamese foreign ministry previously condemned the Antelope Reef operations in March, stating it "resolutely opposes such actions (and) has made representations."

The Chinese defense ministry has not commented on the newly reclaimed island. State media outlets assert the facility is intended for civilian scientific research and weather forecasting.

Defense experts argue the buildup fundamentally complicates regional operations for U.S. and allied forces.

"It's one more thing the United States would have to take care of, and something they could attempt to defend from the Chinese mainland," said Carl Thayer, a professor at the Australian Defense Force Academy.