This article discusses the anti-Czech plebiscite propa-ganda in the press of Cieszyn Silesia (Těšínské Slezsko), focusing on the successive issues of the Republika, a local Polish-language weekly, published between January and May 1920. The analysis shows that Republika's radical language and multiple articles aimed at discrediting Czechoslovakia and the Czech nation turned it into a potent instruments of pro-Polish agitation on the eve of the plebiscite (which was eventually cancelled).