 Ukraine's uncrewed surface vessels have become a big problem for Russia. The role of uncrewed surface vessels in the war between Russia and Ukraine is growing and they can be used against the weakest points in Russian sea-based logistics. According to United Kingdom Defense Intelligence, it is noted that the Russian merchant tanker Sieg was damaged near the Kursh Strait on the 4th of August by a drone attack. A day earlier, there was a similar attack on the Olenegorsky-Goniak landing ship and two days before that, it appears there was an unsuccessful attack on Russian patrol boats when they were believed to be escorting the Russian merchant ship Sparta-4 according to UK Intelligence. Analysts noted that although Sieg and Sparta-4 are civilian vessels, they have been used for a long time to transport fuel and military cargo between Russia and Syria. Since 28 February 2022, Russian military ships have not been able to pass through the Bosporus, leaving Russian military forces in Syria and the Mediterranean heavily dependent upon Sieg, Sparta-4 and a handful of other civilian vessels. The attacks show that uncrewed surface vessels operations are increasingly a major component of modern naval warfare and can be turned against the weakest links of Russia's sea supply lanes. United Kingdom Defense Intelligence said