Ukraine has even proven capable of sinking Russian warships. Just last month, Ukraine said that it used naval drones to sink a Russian landing ship, the Caesar Kunikov, in the Black Sea.

KYIV, Ukraine (AP) — Ukraine's military said Wednesday it used naval drones to sink a Russian landing ship in the Black Sea, a report that has not been confirmed by Russian authorities.

Russia suffered the loss of another senior officer, after the captain of a large Black Sea landing ship died in the Ukrainian war. According to the authorities in Kiev, Vladimir Putin's troops ...