According to the source, the principle of successful air defense operation lies in the all-round protection of an object, be it an oil depot, a factory or an entire region. Today, it is simply impossible to take St. Petersburg and the Leningrad Region into the all-round air defense defense, as well as important strategic enterprises, due to the lack of anti-aircraft missile systems.
6 The Leningrad Air Force and Air Defense Army at the best of times had only one division of the Pantsir S1 self-propelled air defense system, that’s about 6 vehicles. After the start of the war, almost all of the Pantsirs were sent to protect a “strategically important” facility in Valdai, where the residence of the President of the Russian Federation is located, some went to the combat zone and one complex was “lost” in 2023, due to an accident in the Leningrad region. 
Other complexes of the air defense military district in the Leningrad region are mainly S 400 and S 300 and Buk M1, which are simply useless for combating small, slow-moving targets.
“ВЧК ОГПУ”
