UPDATE: China’s Continuing Reclamation in the Paracels

The Paracel Islands chain plays a key role in China’s goal of establishing surveillance and power projection capabilities throughout the South China Sea, and Beijing has recently undertaken substantial upgrades of its military infrastructure to accomplish that.

What Makes an Island? Land Reclamation and the South China Sea Arbitration

We have all heard about land reclamation by the People’s Republic of China (PRC) in the South China Sea, particularly the southeastern region known as the Spratly Group. But much less is being said about what the Permanent Court of Arbitration just finished considering for the past week: are artificial islands really islands? According to […]

China’s Land Reclamation Announcement: A Change in Message, Not in Policy

Q1: What has China announced about its land reclamation activities in the Spratly Islands? A1: On June 16, China’s Foreign Ministry spokesperson Lu Kang announced that “as planned, the land reclamation project of China’s construction on some stationed islands and reefs of the Nansha (Spratly) Islands will be completed in the upcoming days.” He noted […]

On the Defensive? China Explains Purposes of Land Reclamation in the South China Sea

Growing international criticism of China’s land reclamation in the South China Sea and the publication of detailed images of China’s dredging and construction activities prompted the Chinese government to explain in greater detail than ever before the purpose of these activities. In response to U.S. Defense Secretary Ashton Carter’s charge that China has “intensified the […]

The Post-Reclamation Scenario in the South China Sea: The Role of China and the United States.

Since 2014, China has attracted tremendous regional and international attention through its land reclamation activities in some features of the Spratlys which it controls, namely Gaven Reef, Cuarteron Reef, Johnson South Reef and Fiery Cross. While many have criticisms and concerns, China feels this reclamation is necessary in order to keep up with others in […]

China Responds to Reclamation Reports

On February 26, the semi-official China Military Online reported that Beijing is conducting “large-scale” land reclamation in the disputed Spratly Islands—activities that the Asia Maritime Transparency Initiative and major news outlets worldwide have been watching closely in recent weeks. In a follow-on article, Reuters called this public acknowledgment of work on six reefs “unusual.” We […]

Reclamation in the South China Sea: Legal Loopholes, Practical Impacts

As if they were not complicated enough, the South China Sea disputes took a new turn in 2014 when China began massive land reclamation work in the region. The Philippines released photographs showing an unprecedented transformation of formerly pristine and submerged Johnson South Reef into high and dry white sand swarming with construction activity. Satellite […]

Diplomacy Changes, Construction Continues: New Images of Mischief and Subi Reefs

On June 16, 2015, China’s Foreign Ministry spokesman Lu Kang announced that “as planned, the land reclamation project of China’s construction on some stationed islands and reefs of the Nansha (Spratly) Islands will be completed in the upcoming days.” He went on to note that after land reclamation on existing features was complete, China would continue to […]

China’s Claims are Unambiguously Ambiguous

In the first paragraph of his recent AMTI article, Zheng Zhihua essentially conflates two issues–questions of sovereignty over islands and questions of jurisdiction over resources and the boundaries delimiting them–when he says: A few international observers also accuse China of deliberately obscuring its territorial claims in the South China Sea by using terms not found […]

Furthering U.S. Strategic Goals in the South China Sea

China’s reclamation blitz in the Spratly Islands continues unabated, despite condemnation from fellow claimants and outside nations. Chinese dredging ships have been hard at work expanding at least seven features: Cuarteron, Gaven, Hughes, Fiery Cross, Johnson South, Mischief, and Subi reefs. Their work will be largely complete in a matter of months, presenting the region […]

The Other Crisis in the South China Sea

China’s accelerated construction activities in the South China Sea have understandably alarmed countries across the region and beyond. In particular, Southeast Asian claimant states such as Vietnam and the Philippines are deeply worried about the prospects of an irreversible Chinese consolidation of its sweeping maritime claims, more expansive Chinese paramilitary patrols in the area, and, […]

U.S.-Philippines Balikatan Exercise in the Face of Chinese Island Building

The Philippines and the United States will hold a large-scale 10-day military exercise known as Balikatan (Shoulder-to-Shoulder) from April 20-30. This takes place in the face of China’s island-building activities in the South China Sea.  For Balikatan 2015, 11,740 American, Filipino, and Australian troops will conduct joint training exercises and maneuvers in three separate locations […]

Before and After: The South China Sea Transformed

Source image: Google Earth This map shows four land features in the Spratly Islands that have undergone significant construction or land reclamation work in the past year. They are: Itu Aba, Gaven Reef, Johnson South Reef, and Fiery Cross Reef. Read more details about the features of these projects and use click and drag the […]

The Legal Challenge of China’s Island Building

Those closely following the situation in the South China Sea have been wringing their hands about the military potential of China’s unprecedented island building work over the last year. This anxiety is understandable, and the expanded patrol and surveillance capacity that Beijing is constructing with facilities, docks, and probably at least one airstrip in the […]

No Islet Left Behind: Vietnam Reclaims Land at Every Remaining Spratly Outpost

Since the start of 2025, Vietnam has expanded its island-building efforts to eight features previously untouched by the current round of reclamation that Hanoi began in 2021. New Dredging Recent satellite imagery shows that Vietnam has undertaken dredging and landfill work at Alison Reef, Collins Reef, East Reef, Landsdowne Reef, and Petley Reef, all of […]

Environmental Crimes as an Evolving Threat to Southeast Asia’s Maritime Security

This article is part of Evolving Threats to Southeast Asia’s Maritime Security, a series of analyses produced by experts convened by the S. Rajaratnam School of International Studies. How have environmental crimes evolved over the last 20 years? Environmental crime has received less attention than other forms of transnational maritime crimes. Whereas IUU fishing and […]

Construction at Cambodia’s Ream Picks Up Pace

Chinese-funded construction continues to transform Cambodia’s Ream Naval Base at a rapid pace, with major land clearing, a new pier, and several new structures completed in the last three months. Twenty-eight acres of land, over 15 percent of Ream’s total land area, have been cleared in the center of the base since July. Construction is […]

More Island Upgrades Across the South China Sea

Vietnam’s recent dredging efforts have garnered attention from both AMTI and the international press.  But other occupants in the South China Sea have also continued to modestly upgrade their facilities in recent years. As part of a comprehensive update to our Island Tracker, AMTI has surveyed occupied features across the Spratly and Paracel Islands and […]

Update: China Continues to Transform Ream Naval Base

Construction continues at Ream Naval Base amid concerns that the new facilities are being built to facilitate a Chinese military presence in Cambodia. Over the course of August and September, three new buildings have gone up and a new road has been cleared, among other changes. Satellite imagery from Maxar Technologies and Planet Labs shows […]

Vietnam Shores Up Its Spratly Defenses

Vietnam continues to make modest improvements to its facilities in the Spratly Islands. In cooperation with Simularity, AMTI has reviewed satellite imagery from the last two years to catalog upgrades to Vietnam’s island outposts since the initiative last surveyed them. This exercise underscores Hanoi’s continuing focus on making its bases more resilient to invasion or […]

Sansha City and Corporate Activity in the South China Sea

On August 26, the U.S. Department of Commerce’s Bureau of Industry and Security added 24 Chinese companies to the Entity List for their activities in the South China Sea. The bureau targeted these entities specifically for “their role in helping the Chinese military construct and militarize the internationally condemned artificial islands in the South China […]