In this final paper deals with the analysis of the international reserves of the Kingdom of Belgium and the Republic of Croatia for the time period from 2014 to 2018. At the beginning of the paper the concept of international reserves will be elaborated and explained in more detail. Also, the structure of international reserves, the optimal value and the goals and risks of maintaining international reserves will be mentioned. To make the comparison between the two mentioned countries easier, both geographical and fundamental macroeconomic indicators can be found in the continuation of the paper. Afterwards, an analysis of the international reserves of the countries concerned will be carried out, the trends and the level of international reserves in the observed period, as well as their structure will be further elaborated. The subject of this final paper is an analysis of the movement and comparison of the international reserves of the Kingdom of Belgium and the Republic of Croatia in a period of five years. The purpose of this final work is to process the concept of international reserves and to analyze and compare the structure and the level of international reserves of the Kingdom of Belgium and the Republic of Croatia over a period of five years. The hypothesis is that there are significant differences in the structure and the level of the international reserves of the Kingdom of Belgium and the Republic of Croatia. The research methods which will be used in the final paper are analysis and synthesis that will determine the structure of international reserves and their activities. Also, mathematical and statistical methods were used in the processing and analysis of the numerical data considering the international reserves of the two countries.