Direct proof of use
The Mark VI Patrol Boat is documented in the 2014 Russia-Ukraine War as a U.S. security-assistance and Foreign Military Sales item for Ukraine. On June 17, 2020, the Defense Security Cooperation Agency announced State Department approval for a possible sale to Ukraine of up to sixteen Mark VI Patrol Boats and related equipment, stating that Ukraine would use the vessels to defend territorial waters and other maritime interests.
U.S. Department of Defense contract notices and SAFE Boats International records then moved the program from approval into production and outfitting. The public record supports transfer, construction, training, outfitting, and installation of gun weapon systems for Ukraine; it does not establish confirmed combat employment by Ukrainian crews.
Sources: DSCA Ukraine Mark VI Sale, DoD January 2021 Mark VI Contract, DoD September 2021 Mark VI Contract, SAFE Boats Ukraine Contract, DoD April 2023 Mark VI Weapons Contract
Timeline
The transfer lane began before the full-scale 2022 invasion, after the United States had already been supporting Ukraine's defense reforms and military capacity following Russia's 2014 seizure of Crimea and war in Donbas. In January 2021, SAFE Boats received a long-lead and pre-production contract for two Mark VI patrol boats to be delivered to Ukraine.
By March 2021, the Defense Department announced two additional armed Mark VI patrol boats under the Ukraine Security Assistance Initiative and said the United States had committed eight Mark VI patrol boats in total. September and December 2021 contract notices added six boats with an option for two more, then exercised options for two additional boats, pushing completion work into March 2026.
In January 2023, Naval News reported that the first Ukraine-bound Mark VI hull had appeared at Tacoma for outfitting. In April 2023, a U.S. contract modification funded procurement and installation of four gun weapon systems onto Mark VI boats, with spares and training, using Ukraine Foreign Military Financing.
Sources: DoD January 2021 Mark VI Contract, DoD March 2021 Ukraine Assistance, DoD September 2021 Mark VI Contract, DoD December 2021 Mark VI Contract, Naval News First Ukraine Mark VI, DoD April 2023 Mark VI Weapons Contract
Operational role
The sources identify the Ukrainian Mark VI package as a coastal and territorial-water defense asset rather than as a blue-water combatant. The DSCA package listed boats, gun systems, electro-optical and infrared equipment, long-range acoustic devices, identification systems, MK44 cannons, communications equipment, training, spares, and support.
That package aligns with the parent Mark VI mission profile: littoral patrol, force protection, maritime security, escort, and visit-board-search-and-seizure work. For Ukraine, the documented conflict role is therefore foreign-aid maritime patrol and force-protection capacity for the Ukrainian Navy, with public evidence centered on acquisition and integration rather than dated patrols, engagements, or losses.
Sources: DSCA Ukraine Mark VI Sale, DoD March 2021 Ukraine Assistance, SAFE Boats Ukraine Contract, Naval News First Ukraine Mark VI