Ukraine has achieved a historic milestone by successfully striking a Russian submarine with an underwater drone, marking the first such recorded instance in combat history. This attack on a Kilo-class submarine at Novorossiysk, Russia’s primary Black Sea naval base, underscores Ukraine’s strategic pivot towards asymmetric warfare amidst a conventional naval deficit. The operation not only diminishes Russia’s missile projection capabilities but also highlights vulnerabilities in its rebased naval defenses. Analysts suggest that this development could redefine naval warfare dynamics, particularly in littoral zones, as Ukraine’s innovations in drone technology pose a significant challenge to traditional naval powers while enhancing Kyiv’s negotiating position amid ongoing peace talks.