Direct proof of use
The Harpoon Coastal Defense System appears in the 2014 Russia-Ukraine War record through U.S. security-assistance funding for Ukraine after Russia's full-scale invasion. On 15 June 2022, the U.S. Department of Defense announced a $1 billion Ukraine assistance package that included two Harpoon coastal defense systems under the Ukraine Security Assistance Initiative.
A same-day Defense Department briefing described the package as a vehicle-mounted Harpoon capability for Ukraine's coastal defense. U.S. officials said the United States would provide launchers, that the launch capability would be truck-mounted, and that Harpoon missiles would come from allies and partners.
Public U.S. sources separately confirmed Ukrainian Harpoon combat use around Snake Island in 2022, but they did not identify that shot as coming from the two USAI-funded HCDS units. The clearest HCDS-specific claim is therefore transfer and fielding of a truck-mounted coastal-defense launcher package for Ukraine, not a publicly attributed combat launch by those exact two systems.
Sources: DOD Ukraine Harpoon Systems, DOD June 2022 Harpoon Briefing, DOD Snake Island Harpoon Confirmation
Coastal-defense role
The HCDS package was tied to Ukraine's Black Sea coastal-defense requirement. Defense Department reporting described coastal defense as near the top of Ukraine's urgent requirements and linked the capability to Russian pressure around Odesa, Ukrainian ports, and the Black Sea.
The same briefing separated launchers from missiles: U.S. officials said the launchers would be procured by the United States and matched with Harpoon missiles provided by allies and partners. That distinction matters because Ukraine had already received or was receiving other Harpoon-related aid, including partner-supplied missiles and launcher arrangements reported separately from the two USAI-funded HCDS systems.
Sources: DOD Ukraine Harpoon Systems, DOD June 2022 Harpoon Briefing, USNI Ukraine Deploys Harpoons
Snake Island context
The public record connects Harpoon missiles, rather than the named HCDS procurement package, to Ukrainian pressure on Russian forces near Snake Island. On 1 July 2022, a senior U.S. defense official said Ukraine used recently acquired Harpoon missiles to attack a Russian resupply ship headed to Snake Island and confirmed that a Harpoon hit that ship.
That episode helps explain the operational value of land-based Harpoon capability in the northwestern Black Sea, but it should not be read as proof that the USAI-funded HCDS launchers had already fired. The Defense Department's June briefing had described a several-month contracting, delivery, training, and operational-effectiveness path for the two truck-mounted systems.
Sources: DOD June 2022 Harpoon Briefing, DOD Snake Island Harpoon Confirmation