The Harpoon Coastal Defense System scored a direct hit in a US Navy test, a milestone for the land-based anti-ship capability Taiwan has ordered under a $2.3 billion program.
According to a munitions acquisition office release, the Boeing-built Harpoon Coastal Defense System achieved a successful strike on a target vessel during a developmental maritime test intended to validate the ground-launched weapon’s effectiveness against at-sea threats.
“During the event, the Harpoon missile successfully launched from land and engaged the target vessel in near-shore/littoral waters. HCDS is designed to provide a robust, land-based anti-ship capability, leveraging the proven Harpoon missile to protect vital coastal assets and strategic waterways,” the release stated.
A Naval Air Systems Command official involved in the effort said the trial “represents a significant milestone in our mission to deliver a vital, high-priority defense capability to the field.” Additional trials are planned in a second phase of developmental testing to further validate performance.
Harpoon Coastal Defense System headed to Taiwan
The event offered the first public glimpse of the mobile coastal battery that will be fielded in large numbers by the Republic of China Navy’s Littoral Combat Command. The system is not currently under contract for the United States or any other military besides Taiwan, making the test an important step toward fulfilling Taipei’s order.
Taiwan procured up to 100 launchers and 400 RGM-84L-4 Harpoon Block II missiles in a 2023 agreement valued at as much as $2.3 billion, with the contract executed on Taipei’s behalf by Naval Air Systems Command, according to local reporting. The buy supplements Taiwan’s existing ship-launched and air-launched Harpoon inventories. At least five HCDS launchers and a radar vehicle have already been delivered to the island, according to publicly available information.
Mobile launcher configuration and integration
A Taiwanese defense observer noted the system is mounted on the Heavy Expanded Mobility Tactical Truck, differing from earlier trailer-based Harpoon launchers fielded by Denmark and South Korea. Imagery from the test showed a gray HEMTT with a command cabin and four Harpoon canisters.
Taiwan plans to operate HCDS alongside its domestically produced subsonic Hsiung Feng II and supersonic Hsiung Feng III coastal batteries. Since the early 2020s, Taiwan has increased stocks of these anti-ship weapons under the Sea-Air Combat Power Improvement Plan for 2022 to 2026, with further developments extending ranges to about 1,500 kilometers.
Role in Taiwan’s coastal defense posture
Taipei intends to combine the Harpoon Coastal Defense System, indigenous missiles, and one-way attack drones to help counter a potential amphibious operation. Estimates cited by international media indicate Taiwan could field at least 1,800 anti-ship missiles by 2029, underscoring an investment in capabilities suited for a high-intensity contingency in the Taiwan Strait.
The United States has continued to expand security and defense cooperation with Taiwan through arms sales authorized by the U.S. Department of State. Regional military modernization and exercises by the Taiwanese defense ministry are closely watched amid rising tensions.