The Armenian Air Force (Armenian: Հայաստանի Ռազմաօդային Ուժեր) is the air arm formed by independent Armenia in 1992 in the wake of the dissolution of the Soviet Union. It is organized and equipped principally to provide Armenian ground forces with tactical air support in the form of ground attack and airlift in mountainous terrain. It provided effective support during the battles with Azerbaijan in the Nagorno-Karabakh region from 1992–1994, albeit without much fanfare.It currently lacks air superiority fighters, but air defense is provided by MiG-29s of the Russian Air Force under a military cooperation treaty. Since 2003, the Armenian government has been funding a modernization and enlargement of the air fleet.
The S-300 (NATO reporting name SA-10 Grumble) is a series of initially Soviet and later Russian long range surface-to-air missile systems produced by NPO Almaz, based on the initial S-300P version. The S-300 system was developed to defend against aircraft and cruise missiles for the Soviet Air Defence Forces. Subsequent variations were developed to intercept ballistic missiles.