China has recently established a $50 billion military stronghold on Hainan Island, according to The Washington Post. Situated off the southeastern coast of China, this strategic location has become a central base for the nation’s military ambitions, rivaling even the U.S. military facilities in Hawaii. Analysts believe this expansion serves China’s intent to secure control over the South China Sea, protect vital sea routes, and potentially counter U.S. forces if they intervene in any action against Taiwan. China’s move has reverberated across the region, fueling geopolitical tension as the U.S. and its allies scrutinize the implications of this formidable presence.
A Closer Look at Hainan’s Military Buildup
Hainan Island, often referred to as “China’s Hawaii,” was once known for its beaches, resorts, and villages. However, it now hosts a concentration of advanced military forces, especially at the Greater Yulin Naval Base. Among the most prominent assets in the region are nuclear submarines, destroyers, and an aircraft carrier dock valued at $2.5 billion. An underground submarine pen hidden in the mountain near East Yulin ensures that much of this military power remains out of reach of foreign surveillance.
The People’s Liberation Army (PLA) has developed various strategic facilities across Hainan, transforming farm fields and commercial seaports into complexes that project Chinese power deep into the contested waters. Beyond the navy, Hainan also hosts air bases like Lingshui, which now supports anti-submarine warfare aircraft and airborne early warning systems, along with a munitions storage area.
In addition to maritime forces, China’s PLA Rocket Force maintains a base equipped with DF-21D anti-ship ballistic missiles, often called “carrier killers.” These missiles give the PLA striking power across the South China Sea and beyond, enhancing China’s defensive perimeter. The island also hosts the Wenchang space launch facility, which launches satellites for reconnaissance, surveillance, and communication, strengthening China’s capabilities in space.
List of Known Military Assets on Hainan
The forces deployed across Hainan include a robust variety of assets:
- Naval Forces: Submarines, including six nuclear-powered ballistic-missile submarines, destroyers, and an aircraft carrier dry dock.
- Missile Forces: DF-21D ballistic missiles, with over 40 facilities across China to support rocket force activities.
- Air Force Installations: Lingshui Air Base and other airfields housing anti-submarine warfare aircraft, fighter jets, and early warning craft.
- Space Operations: The Wenchang space launch facility, China’s coastal “portal to space,” serving satellite and future lunar missions.
- Anti-Ship and Air Defense Systems: Positioned on islands and reefs throughout the South China Sea, including Mischief Reef, where anti-aircraft and anti-ship missiles bolster China’s defensive network.

Regional Impact of China’s Military Expansion
China’s expansion on Hainan has intensified the South China Sea’s status as one of the world’s most militarized zones. This region, crossed by vital shipping routes, sees nearly $7.4 trillion in trade yearly. With assets positioned as far as the Paracel and Spratly Islands, China’s dominance in the South China Sea restricts U.S. and allied movements, raising concerns over freedom of navigation.
The strategic “First Island Chain” — an area from Japan down to Malaysia — marks the boundary of Chinese maritime claims, where China asserts its power against foreign presence. Chinese forces now effectively cover the South China Sea, securing sea routes essential for its economy. However, this show of strength complicates relations with the Philippines, Vietnam, and other neighboring nations who share conflicting claims in these waters.
Admiral Samuel Paparo of U.S. Indo-Pacific Command highlights this as a “profound challenge” to allies in the region, emphasizing that the U.S. must reinforce its own capabilities and alliances. Though the PLA’s infrastructure investments in the South China Sea continue, retired Rear Admiral Michael Studeman advises that the U.S. and allies must develop a counterbalance to forestall future conflicts.
Strategic Implications for the Future
China’s rapid military buildup on Hainan signals a dramatic shift in regional power dynamics, putting nearby nations on edge. As China continues to assert dominance in these waters, particularly in areas near disputed zones like the Spratly Islands, incidents with the Philippines have increased. Any conflict in this area could disrupt global trade and energy flows, impacting economies worldwide.
To address this new reality, the U.S. and its allies are recalibrating their military posture in the Pacific. Increasing investment in infrastructure and partnerships could prevent China’s control from expanding further. Meanwhile, Hainan remains a stark reminder of China’s ambitions and the lengths it’s willing to go to secure its regional, and potentially global, objectives.

