At the peak of the Cold War in the 1950s the Soviet Union possessed some 12,000 aircraft, making it the largest air force of all the protagonists. By the 1990s this had declined to around 8,000, the reduction largely reflecting the increase in aircraft capability. As well as fighters and bombers, the Soviet inventory included trainers, transports, seaplanes, electronic warfare and ground attack aircraft, as well as an impressive helicopter fleet, notably the Mi-24 Hind gunship and the massive Homer transport. The Tu-4 Bull was the first Russian nuclear-capable bomber, a copy of the US B-29, which was followed by their range of jet bombers, the Il-28 Beagle, Tu-16 Badger and M-4 Bison. The prop driven Tu-20 Bear and its successors including the Tu-22 Backfire and finally the Tu-160 Backfire, were all formidable. The jet-engined MiG-15 fighter entered service in 1948 and proved itself during the Korean War. The MiG-17, MiG-19 and MiG-21 followed . Ground-attack aircraft included the Su-7 Fitter and M-23 Flogger. The 1970s saw the MiG-25 Foxbat interceptor, followed by the MiG-29 Fulcrum and Su-27 Flanker, coming into service. All these aircraft and many more are authoritatively described and vividly illustrated in this comprehensive work.