Russian air defense systems in Leningrad Oblasts are not likely designed to protect the region against attacks from the south, the Institute for the Study of War (ISW) wrote in its Jan. 21 report. The terminal of Russia’s Novatek natural gas company caught fire in the port of Ust-Luga in Leningrad Oblast near St Petersburg overnight on Jan. 21. The strike was the result of a planned operation by the Security Service of Ukraine, according to an unnamed source in the agency cited by Ukrainska Pravda. The ISW said that air defense systems in Leningrad Oblast may not be well-equipped to counter at…