Abstract As of 17 April 2026, the strongest public-domain evidence indicates that EUROATLAS and EvoLogics have moved GREYSHARK from a fast concept-and-demonstrator cycle into an early operationalization phase centered on critical underwater infrastructure protection, long-range ISR, mine-related missions, and multi-domain maritime sensing, with the Foxtrot configuration positioned as the endurance-maximizing variant through a fuel-cell electric … Leggi tutto Hydrogen Endurance, Seabed Sovereignty – the Autonomous Maritime Battlespace: A Forensic OSINT Analysis of the EUROATLAS GREYSHARK Foxtrot within the Emerging NATO Undersea Security Architecture (April 2026)