.WHEN RUSSIA got into in February 2022 Ukraine barely possessed a naval force. The guardians scuttled their one frigate to avoid Russia from appropriating it. Two years later on Ukraine is straining to keep back a Russian onslaught on land-- however it is succeeding the war in the Black Ocean and has actually cracked the Russian clog of its grain ships. Its success have actually usually depended on rapid technical advancement: every other navy depends on crewed ships to fight, but Ukraine has created a fleet of drone watercrafts, or even uncrewed surface autos (USVs). Exactly how are they forming the battle at sea?