A Ukrainian Sargan-3000 sea drone shot down a Russian Shahed flying on a mesh radio network, Ukraine's Navy reported on 7 October. Ukrainian sea drones have downed Russian aircraft before, but with missiles. This one used a machine gun.

Russia has been hitting Odesa with air attacks that come in waves with short gaps between them. Guarding the sky over water is harder than over land. Since fall 2025, Russia has also used mesh radio networks to reroute Shaheds mid-flight and dodge Ukrainian air defenses. That leaves Ukraine needing more ways to meet these drones out at sea, before they reach its ports and coast.

A Shahed steered by radio

A mesh-network drone passes its control signals along a chain of radio relays, drone to drone and on to ground antennas. That lets a Russian operator steer it in flight.

In May, Serhii "Flash" Beskrestnov, then a Defense Ministry adviser, said only about 5% of Shaheds had got through in a recent Russian strike, and predicted that Russia would answer with jet-powered versions and strikes near the border. By July, Ukraine was testing jamming against mesh-controlled jet Shaheds, he said.

The Sargan-3000 fired its Protector remote weapon station, Militarnyi reported. The station is a remotely operated 12.7-mm (50-caliber) machine gun with electro-optical sights. The outlet added that the Sargan-3000 is designed for combat missions far from Ukraine's coast.

Built for the open sea

Ukraine's Navy took the Sargan-3000 into service in April 2026, according to Militarnyi. The drone boat has a combat radius of up to 1,600 km. It moves at 40–55 knots and carries up to 450 kg of payload.

In September, a Sargan-3000 sank a Russian uncrewed boat with machine-gun fire. Militarnyi called it the first battle between uncrewed sea platforms in history. Analyst H.I. Sutton wrote that the boat carried a Protector made by Norway's Kongsberg. That is the same weapon station named in the October shootdown. Sutton added that Russian attack sea drones work closely with Shaheds, which can relay the boats' mesh radio signals.

UFORCE, a Ukrainian defense company, says it fielded 11 crewless boats and eight drones at NATO's largest unmanned-systems exercise in Portugal, Militarnyi reported. The firm's crews acted as both mock enemy and allied forces alongside Ukraine's Navy during the 31 August–25 September drills. The turnout more than doubled the company's presence at last year's exercise, when it brought five vessels.

Ukraine began the all-out war without large warships, yet uncrewed boats drove Russia's Black Sea Fleet out of its main base on the Black Sea—a result that now pulls far larger navies to the same ranges to test the weapon for themselves.

Ukraine brings its sea-drone playbook to Portugal's NATO exercise

UFORCE joined REPMUS 26, the Portuguese Navy's annual exercise, co-organized with NATO, where member states try out robots and drones built for combat at sea. This year the company widened its presence sharply, UFORCE said on LinkedIn. Across the scenarios, its crews ran strikes, reconnaissance, and defense.

At the center sat the MV7, an uncrewed boat UFORCE showed in every setup it offers. Across its configurations, the MV7 carried interceptors, FPV drones, other kinetic weapons, and electronic-warfare gear. Crews launched flying drones straight off the decks while the boats sat on the water, all run by a single control program.

The company brought three systems to REPMUS for the first time: the Nemesis SeaStrike drone, which launches from the MV7, the MV11 boat, and a supply vessel called L11. UFORCE teams worked beside Ukraine's Navy throughout. Portuguese President António José Seguro inspected the MV7 on the pier, the company said.

Not Ukraine's first visit

Ukraine was at REPMUS last year, too. At REPMUS 2025, a Ukrainian-led "enemy" team beat NATO's side across all five drill scenarios and, in one, landed enough mock strikes on a NATO frigate to have sunk it in a real battle. Ukraine also brought the upgraded Magura v7.2 to that year's drills.