Philippines Receives 6 Warships From South Korea to Deter China in the SCS!
The Philippines is steadily expanding its maritime capabilities, and South Korea has become one of the most important partners in that effort. At the center of the latest expansion are six new 2,400-ton offshore patrol vessels (OPVs) being built by HD Hyundai Heavy Industries for the Philippine Navy. The third ship, the future BRP Rajah Humabon, is expected to join the Philippine fleet later in 2026, although Manila has not publicly confirmed a specific delivery date. Two sister ships are already in Philippine service, while three more remain in the pipeline. Once all six are delivered, the Philippine Navy will have a much larger pool of modern patrol vessels available for operations across the country’s vast maritime domain.
Why the Philippines Needs More Patrol Ships
The Philippines is an archipelagic country with thousands of islands and an enormous maritime area to monitor. For years, one of the Philippine Navy’s biggest challenges has been having enough modern ships to maintain a persistent presence across such a wide area. The challenge has become more urgent as tensions have increased in the South China Sea. Encounters involving Philippine and Chinese forces around disputed maritime features have shown that presence, surveillance and rapid response are now central parts of maritime security. A navy does not need to send a heavily armed frigate every time it needs to conduct a routine patrol, monitor activity or support maritime-security operations. Offshore patrol vessels fill that gap by giving commanders additional hulls that can remain at sea while allowing more expensive combatants to focus on higher-end missions.
The six Rajah Sulayman-class offshore patrol vessels are being built by South Korea’s HD Hyundai Heavy Industries under a contract signed with the Philippine Department of National Defense in June 2022. The program is valued at roughly US$573 million. Each vessel displaces about 2,400 tons, measures approximately 94.4 meters in length, can reach around 22 knots and has a reported range of about 5,500 nautical miles. These characteristics are particularly useful for an island nation whose maritime areas are spread across a huge geographic space. The six OPVs represent more than a simple replacement for older patrol craft. They will significantly increase the number of modern platforms available for surveillance, patrol, maritime security and other missions across the Philippine maritime domain.
The Rajah Sulayman-Class Is More Than a Basic Patrol Boat
Although the ships are classified as offshore patrol vessels, their capabilities are more substantial than those of a small coastal patrol craft. The design includes a 76 mm main gun, a 30 mm secondary weapon, modern radar and electro-optical systems, defensive decoys, a helicopter-capable flight deck and provisions for unmanned aerial vehicle operations. The vessels also use a modular approach that can support different mission requirements. This flexibility is useful for a navy that has to balance maritime security, surveillance, humanitarian operations and more demanding defense missions. At the same time, expectations should remain realistic. These OPVs are not replacements for the Philippine Navy’s high-end frigates, nor are they designed to fight China’s largest warships in a one-on-one engagement. Their value lies in persistence, coverage and force distribution.
Why Persistence Matters in the South China Sea
The strategic value of an OPV is often less about the size of its weapons and more about how often it can be present. A ship that can remain on patrol, observe activity and report what it sees can contribute to maritime awareness even when it is not conducting combat operations. For the Philippines, that is particularly important in the West Philippine Sea. Regular patrols can support maritime-domain awareness, fisheries protection, exclusive economic zone monitoring, humanitarian missions and other security tasks. More patrol ships also allow the Philippine Navy to distribute its forces more effectively. Instead of relying heavily on a small number of frigates for routine missions, commanders can use OPVs for lower-intensity tasks while preserving more capable ships for deterrence and higher-end operations.
China Faces a New Problem — Marcos Jr Blocks Taiwan Attack Route From Philippines
The Rajah Sulayman-class program is also notable because anti-submarine warfare has been discussed as part of the ships’ potential mission set. HD Hyundai has described an anti-submarine acoustic detection capability for the design, while reporting has indicated plans for towed-array sonar equipment on some of the Philippine vessels. If those capabilities are fielded as planned, selected OPVs could contribute to the Philippine Navy’s ability to monitor activity beneath the surface. This could complement aircraft, drones, surface ships, coastal sensors and other sources of maritime information. The important point is that the OPVs should not be viewed as isolated platforms. Their greatest value could come from how they fit into a wider maritime surveillance and defense network.
Two Ships Are Already in Philippine Service
The transformation is already underway. The first vessel, BRP Rajah Sulayman, arrived in the Philippines in January 2026 and was formally commissioned in February. HD Hyundai delivered the ship ahead of its original schedule. The second vessel, BRP Rajah Lakandula, arrived at Subic in May 2026. With two ships already in the fleet, the program has moved beyond procurement and into operational use. The future BRP Rajah Humabon, carrying the designation PS-22, is the next major addition. Public reporting indicates that the ship is expected to arrive later in 2026, but the exact delivery date has not been publicly confirmed by the Philippine Navy.
The OPV program is only one part of a much larger defense relationship between South Korea and the Philippines. South Korea previously supplied the Philippines with two Jose Rizal-class frigates, which entered service in 2020 and 2021. The relationship then expanded with the two Miguel Malvar-class ships, which provide more advanced combat capabilities. Manila has also moved forward with a contract for two additional 3,200-ton frigates scheduled for delivery by 2029. Taken together, these programs show that South Korea is becoming an important supplier in the Philippine Navy’s emerging fleet architecture.
What South Korea’s Role Means for the Philippines
South Korea’s growing role gives Manila access to one of Asia’s most capable shipbuilding industries while helping the Philippine Navy expand its fleet in stages. The relationship between the two countries has developed far beyond a single shipbuilding contract and now covers frigates, offshore patrol vessels, combat systems, logistics support and future naval programs. For the Philippines, this partnership provides an opportunity to build a more balanced and sustainable fleet without attempting to acquire all of its capabilities from a single type of platform or a single mission category. Korean-built ships can provide the Philippines with modern hulls, sensors, weapons and communications systems that are increasingly important for maritime security in the South China Sea and across the country’s wider exclusive economic zone.
The partnership is also important because naval modernization is not simply about buying ships. A modern navy needs trained crews, engineers, maintenance personnel, spare parts, technical documentation, repair facilities and a reliable supply chain. South Korea’s involvement can help the Philippines develop some of these capabilities alongside the acquisition of new vessels. The experience gained from operating multiple Korean-built ships could also make it easier for Philippine personnel to develop familiarity with similar equipment, maintenance procedures and technical systems. Over time, this can help create a more experienced workforce capable of keeping the fleet operational rather than simply expanding the number of ships on paper.
The Real Transformation Is Persistence
The future BRP Rajah Humabon will not change the balance of power in the South China Sea on its own, but its importance lies in what it represents. The vessel is part of a larger effort to give the Philippine Navy a more persistent presence across an enormous maritime domain. For a country made up of thousands of islands, maintaining continuous maritime awareness is extremely difficult when the number of available modern ships is limited. Six new OPVs can help reduce that pressure by providing additional platforms that can remain at sea for patrols, surveillance, maritime-security operations and other missions.
Persistence is particularly important because maritime security is not limited to wartime operations. Philippine vessels may be required to monitor activities within the country’s exclusive economic zone, support fisheries protection, respond to maritime incidents, conduct search-and-rescue operations, provide humanitarian assistance and maintain a visible presence around strategically important areas. These missions can consume a significant amount of naval availability if they are handled primarily by high-end frigates. OPVs provide a more practical option for many of these tasks, allowing larger and more heavily armed warships to remain available for deterrence and missions that require greater combat capability.
When will BRP Rajah Humabon arrive in the Philippines?
The third Rajah Sulayman-class offshore patrol vessel, BRP Rajah Humabon, is expected to join the Philippine Navy later in 2026. However, the Philippine Navy has not publicly confirmed a specific delivery date. Its arrival will mark another important stage in the six-ship OPV program and will increase the number of modern patrol vessels available to Philippine commanders. The ship is expected to contribute to maritime surveillance, patrol and security operations once it becomes operational.
The Philippines ordered six 2,400-ton Rajah Sulayman-class offshore patrol vessels from South Korea’s HD Hyundai Heavy Industries. The first two ships have already entered Philippine service, while the remaining vessels are expected to be delivered as the construction program progresses. Once all six are operational, the Philippine Navy will have a significantly larger number of modern patrol platforms available for missions across its extensive maritime domain. This will provide greater flexibility in assigning ships to routine patrols, surveillance, maritime security and other missions.
What is the main role of the Philippine Navy’s new OPVs?
The main value of the new OPVs is persistent maritime presence. Their relatively large size, long range and patrol-oriented design allow them to operate across widely separated maritime areas and remain useful for extended missions. They can support exclusive economic zone monitoring, fisheries protection, maritime surveillance, humanitarian assistance, search-and-rescue operations and other security tasks. Their availability can also reduce the need to use higher-end frigates for every routine mission, allowing those warships to focus on deterrence and more demanding combat-related roles.
The Rajah Sulayman-class OPVs are not designed to compete directly with China’s largest destroyers, frigates or other high-end combatants in a one-on-one engagement. China’s naval and maritime forces remain considerably larger than those of the Philippines. The purpose of the OPVs is instead to increase Philippine maritime coverage, surveillance and presence. Their strategic value comes from giving Manila more ships that can operate at sea, monitor activity and support national maritime interests while working alongside frigates, aircraft, drones, coastal systems and allied forces.
Why is South Korea important to Philippine naval modernization?
South Korea has become one of the most important naval suppliers for the Philippines. Its contribution includes the Jose Rizal-class frigates, Miguel Malvar-class ships, Rajah Sulayman-class offshore patrol vessels and additional future frigate programs. This growing relationship provides Manila with access to South Korea’s advanced shipbuilding and defense-industrial capabilities. It also creates opportunities for long-term cooperation in maintenance, logistics, training and technical support, which are essential if the Philippine Navy wants to keep its expanding fleet operational for many years.
The OPV program will not eliminate the military imbalance between the Philippines and China, but it can improve Manila’s ability to maintain a consistent maritime presence. More patrol vessels mean more opportunities to observe activity, monitor Philippine maritime areas, document encounters and respond to incidents. In a contested maritime environment, the ability to maintain regular presence can have strategic importance because it provides decision-makers with more information and more options. The six OPVs are therefore best understood as part of a broader Philippine effort to strengthen maritime awareness and sustain operations across the West Philippine Sea and the country’s wider maritime domain.
About Indo-Pacific Report
For more geopolitical analysis, strategy coverage, and Indo-Pacific security reporting, visit Indo-Pacific Report:
Website
Facebook
YouTube
Philippines Receives 6 Warships From South Korea to Deter China in the SCS!
