Soviet interceptor pilots faced the daunting task of defending the world’s largest nation against the combined forces of the world’s most technologically advanced nations. The awesome responsibility of preventing nuclear annihilation from USAF B-52 bombers, countering the impossible nuisance of snooping mach 3 SR-71s and air-to-air combat with F-4 and F-15s were formidable tasks that the skilled pilots of the Soviet Air Defence Forces (PVO) trained for in earnest. In the Cold War, the backbone of their manned air defence was 1300 Sukhoi Su-15s (NATO codename ‘Flagon’), we spoke to Su-15 pilot Valeri Shatrov to find out more.
https://hushkit.net/2019/04/26/interview-with-soviet-air-force-su-15-flagon-fighter-pilot-defending-the-ussr/