.WHEN RUSSIA got into in February 2022 Ukraine scarcely possessed a navy. The protectors scuttled their one frigate to prevent Russia from appropriating it. 2 years later on Ukraine is actually battling to hold off a Russian aggression on land-- but it is winning the war in the Black Sea as well as has damaged the Russian blockade of its own grain ships. Its own victories have often depended upon swift technological technology: every other navy relies upon crewed ships to eliminate, but Ukraine has created a line of drone watercrafts, or uncrewed surface vehicles (USVs). How are they forming the battle at sea?