This dissertation approaches the foreign policy of the Republic of Croatia as a new memberstate of the European Union in the period from 2013 to 2018 through the lens of typical behavior of small states in international relations. Due to their respective surroundings, as well as their priorities in foreign affairs, which are nearly always reduced to the eternal struggle between influence and independence, small countries have several foreign policy strategies at their disposal. With the admission of the Republic of Croatia into the European Union on 1 July 2013 as a member state in full capacity, the country's geopolitical status markedly changed. This paper examines the external political allegiances of Croatia through a combined qualitativequantitative approach. It first describes the relevant time frame and gathers the data needed for a quantitative analysis. The quantitative analysis then employs statistical methods of correlation and linear regression ibn order to study diplomatic activity and identify the focus of Croatian foreign policies. In this part, the method of linear regression creates the so-called residual model for interpretation and evaluation of Croatian diplomatic activity, which breaks down the measured and predictable diplomatic activity in order to evaluate the current stream in diplomacy as being either unpredictably intensive, predictable, or extraordinarily low (undercapacitated). Such an approach generates firmly grounded conclusions about the direction and current focus of Croatian foreign policies. For example, it showcases intensive diplomatic activity with Montenegro, Albania, the United Kingdom, the Republic of Kosova and Macedonia, and undercapacitated diplomacy with the Netherlands, Spain, Belgium, Finland and Portugal. This leads one to conclude that Croatia quite heavily relies on its role as NATO-member. Furthermore, the analysis of Croatia's security policies indicates an overwhelmingly cooperative strategy in security-related issues, as the country prefers NATO's to UN-missions and contributes to them quite significantly for a country of its size, all with the aim of affirming and strengthening its international status. In terms of its global positioning toward big powers' spheres of influence, Croatia utilizes its partnership with the USA and membership in the NATO to attain influence in that corner of the world where it strives to become a regional leader. In order to do that, it uses what is in political studies commonly referred to as bandwagoning strategy, in other words, it attempts to become a small power within the USA's sphere of interest.