The paper analyzes the development of the relationship between the legislative and executive branches in the Republic of Croatia during the adoption of the first Constitution and the early years of Croatian independence, with a particular focus on the legal and constitutional frameworks that defined the roles and powers of the Parliament as the legislative body and the Government as the executive authority. The central analysis is on the role of legislative delegation, through which the Government received the authority to issue decrees based on legislative delegation, examining the manner and frequency of applying these decrees in practice. A quantitative and qualitative analysis of the decrees provides a foundation for conclusions on the measures and extent of legislative delegation usage, as well as the impact of this practice on the separation of powers. The paper also considers challenges associated with forming a new state and establishing its institutions, where political and legal circumstances required an adaptation of traditional principles of power separation. In this context, the semi-presidential system of government introduced by the Christmas Constitution of 1990 is described, analyzing how this model affected the balance between the legislative and executive branches. Beyond the legal framework, the paper examines the social and political conditions of the period, which often led to tensions between the Parliament and the Government and influenced the autonomy of the legislative branch. Through an analysis of historical and institutional aspects, the paper offers an overview of the key challenges faced by the new state, emphasizing the importance of maintaining a balance among the branches of power to preserve democratic standards and the rule of law.