Ukrainian defenders attacked a military airfield and an oil refinery in Krasnodar Krai, as well as an oil depot in Leningrad Oblast. This occurred overnight on May 19, as reported by RBC-Ukraine citing sources. Krasnodar Krai According to sources, the Security Service of Ukraine (SSU) in collaboration with the Ukrainian Armed Forces’ drone units targeted a military airfield. Dozens of various aircraft were stationed at the airfield, which Russia uses to attack Ukrainian positions on the front lines. These include enemy aircraft such as Su-34s, Su-25s, Su-27s, and MiG-29s. Russian social media …