China’s “Eco-Park” at Scarborough Shoal: A Strategic Threat to U.S. Security
China’s latest maneuver in the South China Sea should send a clear warning to Washington and its allies. On September 10, Beijing announced the creation of a “national-level nature reserve” at Scarborough Shoal—known internationally as Scarborough Shoal—located squarely within the Philippines’ Exclusive Economic Zone (EEZ). While marketed as an environmental protection effort, the move is part of a long-standing strategy: using conservation as camouflage for territorial expansion.
Beijing framed the designation as a measure to safeguard coral reefs and marine biodiversity, comparing the shoal’s ecosystem to Australia’s Great Barrier Reef. State media accused the Philippines of damaging coral and cast China as the responsible steward of marine life.
But behind the rhetoric, the reserve serves a much darker purpose. By institutionalizing Chinese administrative control under the banner of environmental law, Beijing is effectively solidifying its de facto sovereignty claim. This tactic, often called “gray-zone warfare,” creates faits accomplis without direct military confrontation.
Scarborough Shoal has been a flashpoint for years. The Philippines has repeatedly warned that any reclamation or construction on the shoal represents a “red line.” With China’s new reserve, the line has been crossed in a way that is subtler but equally dangerous.
For the United States, this is not just a regional dispute. Scarborough Shoal sits astride vital sea lanes used by American naval and commercial vessels. By converting the shoal into a “protected area” under Chinese law, Beijing gains a legal pretext to restrict navigation, monitor foreign ships, and potentially deploy dual-use infrastructure.
Think tanks such as the Asia Maritime Transparency Initiative (AMTI) have warned that China’s so-called eco-parks resemble previous actions in the Paracel Islands, where “conservation” quickly gave way to radar systems, runways, and militarized outposts. If Scarborough Shoal follows the same path, it would allow Beijing to project power deeper into the Pacific, threatening U.S. bases in Guam and the freedom of navigation operations Washington depends on.
This move also undermines the United Nations Convention on the Law of the Sea (UNCLOS). In 2016, the Permanent Court of Arbitration rejected China’s sweeping “nine-dash line” claims, ruling in favor of the Philippines. By rebranding Scarborough as a “nature reserve,” China sidesteps international rulings while tightening its grip.
Make no mistake: this is not about coral or clams. It is about control. Once Beijing establishes administrative authority under the guise of environmental stewardship, reversing the claim becomes nearly impossible.
South China Sea disputes might seem distant to many Americans, but the consequences are immediate. Over $3 trillion in trade passes through these waters annually, including critical energy supplies. If China cements control of Scarborough Shoal and other contested areas, it gains leverage over global supply chains and the ability to pressure U.S. allies like the Philippines, Japan, and Australia.
Moreover, the move signals China’s readiness to expand its influence without firing a shot—testing U.S. resolve and alliance commitments in the Indo-Pacific. Left unchecked, this strategy could embolden further encroachments, eroding not just regional stability but America’s credibility as a Pacific power.