Missiles Clobber Target Ship In Highly Strategic Luzon Strait

Located roughly 50 miles offshore, the target vessel for a live-fire sinking exercise (SINKEX) campaign was the decommissioned Philippine Navy Rizal class patrol corvette, the former BRP Quezon. The ship was originally completed for the U.S. Navy as an Auk class minesweeper during World War II, serving as the USS Vigilance before being transferred to the Philippines and serving in a new role in the late 1960s. The BRP Quezon, which had a standard displacement of 890 tons, was decommissioned in 2021.

The maritime strike (MARSTRIKE) drills were conducted on the island of Luzon, which sits at the northern end of the Philippines, and is the country’s largest and most populous island. Specifically, the live-fire drills took place around the Paoay Sand Dunes, in the coastal region of Ilocos Norte.

The drills began around 10:00 a.m. local time with a U.S. Army M30/31 Guided Multiple-Launch Rocket System (GMLRS) fired as a “probing round,” with the location of the target vessel being confirmed around 10:15 a.m.

The GMLRS artillery rocket is a highly precise, rapid-strike weapon that can attack targets to a distance of around 50 miles, which would put it right at the limit of its range. It is fired from the M142 High Mobility Artillery Rocket System (HIMARS) that can launch six guided or unguided 227mm artillery rockets or a single Army Tactical Missile System (ATACMS) missile without reloading. GMLRS is not capable of engaging moving targets, so it has limited application in the traditional anti-ship mission set.

In a combined strike, anti-ship missiles were reportedly then launched from a U.S. Marine Corps Navy-Marine Expeditionary Ship Interdiction System (NMESIS) and from a Philippine Navy C-Star system.

Of these, NMESIS employs an uncrewed variant of the 4×4 Joint Light Tactical Vehicle (JLTV), also known as the Remotely Operated Ground Unit Expeditionary-Fires (ROGUE-Fires), on which is mounted a launcher with two ready-to-fire Naval Strike Missiles (NSM). These have a range of around 130 miles and have low-observable features, making them harder for enemy air defenses to detect and engage.

NMESIS is meant to be rapidly deployable and capable of highly dispersed operations in austere areas. As an uncrewed vehicle-launcher combo, small teams of Marines monitor multiple launchers dispersed around an area and move them regularly to keep them from being targeted by the enemy. The system was first deployed in a Balikatan exercise last year, as you can read about here.

While Philippine media reports that the NMESIS, operated by the Hawaii-based 3rd Marine Littoral Regiment, fired a missile during today’s drill, this is refuted by a report from Stars and Stripes. The 3rd MLR is notable in itself, being expressly designed to fight within an enemy’s own littorals, with all the challenges that brings.

Meanwhile, the C-Star is the Philippine Navy’s primary anti-ship missile. Produced by South Korea’s LIG Nex1, a version of this missile is used by the Republic of Korea Navy as the Haeseong. The Philippines uses the C-Star to arm its two Miguel Malvar class and two Jose Rizal class frigates, which are also made in South Korea. Similar to the U.S.-made Harpoon, the C-Star is a turbojet-powered, sea-skimming missile with a range of around 90 miles.

In the drill, the C-Star was likely fired from the Philippine Navy frigates BRP Miguel Malvar and Antonio Luna, both of which are known to be taking part in Balikatan.

These were followed by two rounds fired from a Japanese land-based Type 88 anti-ship missile system, fired for the first time during a Balikatan exercise, and for the first time anywhere outside Japan. The Japanese missiles reportedly struck the hull of the target ship around 10:30 a.m.