.WHEN RUSSIA invaded in February 2022 Ukraine hardly possessed a naval force. The defenders scuttled their one frigate to avoid Russia coming from appropriating it. Two years later Ukraine is battling to keep back a Russian offensive ashore-- however it is actually succeeding the battle in the Black Sea as well as has actually cracked the Russian clog of its own grain ships. Its own success have frequently relied on fast technological technology: intermittent navy depends on crewed ships to eliminate, but Ukraine has actually built a squadron of drone watercrafts, or even uncrewed surface area autos (USVs). Just how are they shaping the war at sea?