The master thesis focuses on changes in European migration policies after 2015, when some European countries altered legislation on migration and asylum policy, thus moving away from the liberal ideas of the European Union. The aim of this thesis is to analyze the responses of selected national European countries, with a focus on Slovenia, on the socio-topical issue of increased migration through analysis of legislation changes on migration in the period between years 2015 and 2017. The migration policy of selected national European countries is examined through policy analysis, focusing on changes in legislative documents of countries which are on or right next to the Balkan migration route and also countries of arrival. As a method, qualitative thematic content analysis and policy analysis were used. The research consists of key topics which appear in legislative documents of selected countries, focusing on how the migration policies determine migrants, how countries regulate their movement, and how the migration policies show the securitization of migration. The theoretical part represents the presentation of different concepts as the phenomenon of exclusion of migrants, the construction of identity, the concept of the state and the notion of the nation, which creates the issue of majority and minority, and consequently differentiation, namely the introduction of repressive actions and the increased state control of migration. The migration process also requires consideration of specific approaches for the study of migration, such as the concept of autonomy of migration, which gives the importance of the power of migration in terms of changing migration management and responses in politics.