Kupředu Levá, Zpátky Ni Krok! - Forwards Left, Not A Step Backwards! (English Lyrics)

"Forwards Left, Not a Step Backwards!" (Kupředu levá, zpátky ni krok!) is a Czechoslovak revolutionary song first written in the early 1950s. The song became popular as a secondary anthem to the Communist Party of Czechoslovakia, alongside The Internationale, and later, for its use as the opening interval of Radio Prague, an international shortwave radio station operated by the Czechoslovak Socialist Republic. (English subtitles)