Chinese Deployment in South China Sea

According to media reports, China has deployed vessels and installed floating barriers at the entrance to the South China Sea, where it is engaged in a maritime territorial dispute with the Philippines. This move comes as the United States, which is at war with Iran, has positioned three aircraft carriers in the Middle East and withdrawn military assets and personnel from the Indo-Pacific region. In the past, when US carriers left the area, Beijing often tested the level of external pressure against it through various channels.

According to reports vessels presumed to be Chinese Navy or Coast Guard patrol ships, fishing boats, and floating barriers crossing the reef were detected near the Scarborough Shoal lately. The Scarborough Shoal is one of the most fiercely contested maritime territories in the Indo-Pacific, where Chinese Coast Guard ships frequently ram and spray water cannons at Philippine maritime patrol vessels.

In 2023, China had installed floating barriers in the waters around the Scarborough Shoal to block Philippine fishing boats, leading to a conflict when Philippine Coast Guard divers were dispatched to remove them.

China claims sovereignty over most of the South China Sea under its self-defined "nine-dash line," but the Permanent Court of Arbitration (PCA) ruled in 2016 that this claim has no basis under international law. Despite this, Beijing has continued to dispatch patrol ships to the Philippines’ exclusive economic zone (EEZ), prolonging the dispute.

The US has pressured China since 2015 by conducting "Freedom of Navigation" operations in the South China Sea. Allies and partner nations advocating for a "Free and Open Indo-Pacific" (FOIP) have also participated in these exercises. However, a significant portion of US naval forces is currently deployed near Iran and the Strait of Hormuz.

The Washington Post has reported last month that the USS George H.W. Bush, which departed from the Norfolk base in Virginia, is expected to arrive in the Middle East around the April 21, 2026. This marks the third aircraft carrier to be deployed to the region, following the USS Abraham Lincoln, previously stationed in the South China Sea, and the USS Gerald R. Ford, which was deployed in the Caribbean Sea.

Additionally, part of the Terminal High Altitude Area Defense (THAAD) system, a key component in South Korea’s defense against North Korean nuclear and missile threats, has been withdrawn, and the 31st Marine Expeditionary Unit, typically the first to respond to contingencies on the Korean Peninsula, has been redeployed from Japan to the Middle East.