A Russian warship is seen docked in the port of the Black Sea resort city of Sochi during a storm on Nov. 27, 2023.Photo by MIKHAIL MORDASOV/AFP via Getty ImagesRussian warships have been observed making unexpected U-turns in the Black Sea.A Ukraine navy spokesperson said they were "fleeing to their hiding spots."Ukraine's victories against Russia's navy have been a standout success of the two-year-long war.Russian warships have been exercising cautious behavior and making unexpected U-turns, hiding from Ukraine's naval drones, said a Ukraine Navy spokesman.Recently, a group of Russian vessels approached the Bosporus Strait, only to abruptly reverse course instead of proceeding to Russian-held Crimea.