Ukrainian defense company Global Mark unveiled the Sea Trident heavy underwater drone at Eurosatory 2026 in Paris, per UNIAN. The platform is designed to strike strategic targets, conduct logistics and transport tasks, deliver cargo, and intercept and neutralize other underwater unmanned vehicles.

Sea Trident has a 10,000-kg displacement, a 2,000 nautical mile range, a 1,000-kg payload capacity, and an operating depth of up to 60 meters. The system features full autonomy and adaptive navigation.

The Sea Trident unveiling reflects the broader shift in the Ukrainian defense industry toward underwater unmanned systems. Ukrainian surface naval drones, such as Magura V5 and others, have driven the Russian Black Sea Fleet from its main Crimea bases and reduced the Fleet to a support role for Russian land operations.

Sea Trident specifications: heavy underwater platform with 1,000 kg payload

According to Global Mark's specifications presented at Eurosatory 2026, Sea Trident has the following parameters: dimensions of 10 × 2 × 1.5 meters, a maximum speed of 10 knots (approximately 18.5 km/h), and a cruise speed of 6 knots (approximately 11 km/h).

These parameters allow Sea Trident to conduct long-duration missions and operate in coastal areas with elevated threat levels. The 60-meter operating depth limits the platform to relatively shallow waters. Sea Trident is designed for coastal and continental shelf operations rather than deep-ocean missions.

Capabilities: strategic strikes, logistics, and UUV interception

Global Mark designed Sea Trident for multiple mission categories. The intercept-and-neutralize capability for other UUVs is unusual. It positions Sea Trident as both an offensive strike platform and a defensive counter-UUV asset.

This dual-role design suggests Ukrainian doctrinal recognition that underwater unmanned operations are likely to become a contested domain in the Russo-Ukrainian war and in broader maritime conflict.

Development status: unveiling

Global Mark presented Sea Trident at Eurosatory 2026 but has not disclosed the platform's development stage or operational readiness timeline. Eurosatory is the world's largest land and air defense exhibition, and Ukrainian platforms appearing there signal commercial market positioning rather than necessarily operational deployment with Ukrainian forces.