Ukraine’s Drones Are Hammering Russian Oil Refineries

On May 19, a Ukrainian drone slammed into the 70,000-barrel-a-day Slavyansk oil refinery in southern Russia’s Krasnodar region, sending a fireball into the sky, according to videos circulating on social media. It was the third time in two months that Ukrainian forces hit the relatively small plant located several hundred kilometers from the front, dodging Russian air defense systems. The latest strike forced Slavyansk to temporarily shut down until the damage could be repaired. The hits on the refinery were part of a campaign of drone strikes…