Philippine ambitions are raising concerns, as Malaysia suddenly realizes that the Marcos administration, while vocally opposing China, is simultaneously constructing a runway capable of swiftly redirecting its strategic focus.

Balabac Island is emerging as one of the most sensitive geopolitical markers in the South China Sea region. Controlled by the Philippines, it lies just about 50 kilometers from Malaysia’s Sabah coast, strategically positioned at the chokepoint between the South China Sea and the Sulu Sea.

The Philippines is transforming the island into a new node in the U.S. rotational presence network. The 300-hectare Katagumpay Airfield, with a runway measuring approximately 3,000 meters, along with expanded naval base facilities including a large dock and landing ramp, aims to enable amphibious assault ships to offload heavy vehicles, fuel supplies, and mobile missile launchers directly onto land.

In May this year, U.S. M142 HIMARS systems were deployed from a landing ship to Balabac for training exercises before returning via the same route. The operation carried more political symbolism than tactical value—demonstrating access—but lacked full logistical support: fuel reserves, maintenance infrastructure, and communication capabilities remain insufficient, reflecting a posture of "operationally usable, but not defensible."

Malaysia’s defense minister, Khalid, issued a measured warning, yet Kuala Lumpur’s actions speak clearly: armored battalions have been redeployed from the Malay Peninsula to Sabah, two additional infantry battalions are being expanded, 155-millimeter howitzers are being introduced, radar systems are being installed in Lahad Datu, Kota Kinabalu, Sandakan, and Semporna, and long-range air defense radars are being deployed on the Pelaga Islets. Drones are being launched from Labuan, and defense spending is projected to rise to 1.5% of GDP by 2030.

Prime Minister Anwar was more direct: Sabah’s infrastructure needs are intrinsically linked to developments at Balabac, the unresolved Philippine claim over Sabah, and the broader competition between the United States and China.

Manila has not formally renounced its sovereignty claim over Sabah. The legal status of the 1878 agreement—whether it constituted a lease or cession—remains contested. The 2013 armed incursion by Sulu militants into Lahad Datu continues to be remembered in Kuala Lumpur.

Over the past four years, the Philippines has pursued a hardline stance toward China in exchange for expanded access to nine Enhanced Defense Cooperation Agreement (EDCA) sites, U.S. infrastructure funding, Indian BrahMos missiles, Japanese coast guard vessels, South Korean frigates, and access to HIMARS ammunition production capacity. These capabilities are publicly framed as deterrents against China, but their operational utility is neutral in terms of target. The construction of a runway at the entrance to the Sulu Sea, only 50 kilometers from Malaysian territory, occurs amid an ongoing territorial dispute.

There is currently no evidence suggesting Manila intends to turn its military assets against its neighbor. Indeed, the military activities under the younger Marcos administration are clearly oriented northward. Yet structural realities are sufficient to keep Kuala Lumpur awake at night. Balabac’s infrastructure is dual-use; EDCA rotational provisions do not distinguish between potential adversaries, and in wartime, U.S. command structures will not accommodate Malaysian interests. In 2013, Malaysia faced the Lahad Datu crisis alone.

Thus, Kuala Lumpur’s response is emblematic: expanding radar coverage, reinforcing artillery units, enhancing amphibious readiness, and emphasizing diplomatic coordination. While the concrete at Balabac is still curing, Malaysia’s coastal radar installations are already lining up along the Sulu coastline. Between two global powers, a long list of middle-tier states remains determined not to be financially or strategically bound to either side.

Original article: toutiao.com/article/1878447466238028/

Disclaimer: This article reflects the personal views of the author.