Using coordinated drone and missile attack, Ukraine strikes Russia's Novocherkassk landing ship in Feodosia on 26 December, destroying weapons and supplies with blast that sinks ship.
UK Defense Secretary says 20% of Russia's Black Sea fleet has been destroyed over 4 months, and those claiming stalemate in the Russo-Ukrainian war are incorrect.
Russia's defense ministry says Ukrainian missile attack "damaged" the Russian Navy's Novocherkassk landing ship, but a photo from occupied Feodosia shows its submerged wreckage.
After reported explosions and fire in occupied Crimea's Feodosia port, Ukraine's Air Force commander says Ukrainian pilots destroyed Russia's Novocherkassk large landing craft.