<prompt> Qedela umusho olandelayo: Ngo-1968, uStětina waqala ukusebenza njengentatheli ephephandabeni i-Mladá Fronta, umsebenzi wakhe lapho waqondana  <response>: Ukuhlala kweSoviet eCzechoslovakia, lapho ibutho laseSoviet lathatha khona ukulawula iMladá Fronta. UStětina wabe esexoshwa ngenxa yokungavumelani kwakhe namabutho aseWarsaw Pact angena eCzechoslovakia. 