Today’s world undergoes unbelievably rapid changes in the main spheres of social life. Nearly everyday we can see spectacular socio-political, economic, cultural, science and technological transformation. Rules previously typical for an industrial society became obsolete. The third wave of civilization development and information society emerges. Increasingly more often production capacity enables manufacturing goods considerably saturated with modern knowledge to develop into highly advanced technologies. New forms of production developed, including soft ware, media, advertising, consulting, and public relations. Consequently, the stage of relative stabilization comes to its end and threats result from the lack of ability to follow continuous changes.
The focus of this study is an analysis of legislative framework for building a defence system in former Czechoslovakia (1918–1938) with regard to main international political factors. The composition sets a goal to analyse the major principles of the defences and the crucial pillars of potential reaction to possible aggression. Supplementary objective is also the examination of the costs, i.e. the price paid by the citizens for implementation of the defence system of the state.