The paper aims to analyse the election manifestos (or programs) of relevant Czech political actors and their influence on the 2023 Security Strategy of the Czech Republic. Manifesto research is based on ex-post content analysis of political manifestos of relevant parliamentary political parties/coalitions – i. e. such subjects that succeeded in getting their seats in the Chamber of Deputies of the Czech Parliament in the 2021 elections. Czech political parties generally conceptualized security before the 2021 elections to the Chamber of Deputies as worsened. Illegal migration was seen as one of the most important issues. Specific areas of interest for the future were cyber-security, energy security, food security and migration prevention. The most attention was concerning the influence of China and the Russian Federation on the security of the Czech Republic. As for the implementation, the parties did not offer much detail and kept their proposals quite general, with several similar steps offered, such as increased EU external border protection.