Grazhdanskaya Oborona (Russian: Гражданская оборона, [ɡrɐʐˈdanskəjə ɐbɐˈronə], Russian for Civil Defense, or ГО, often referred to as ГрОб, Russian for coffin) was a Soviet-Russian rock band formed by Yegor Letov and Konstantin Ryabinov in Omsk, USSR, in 1984. It was one of the earliest Soviet and Russian psychedelic/punk rock bands. They influenced many Soviet and, subsequently, Russian bands.