The paper explains the phenomenon of refugee crisis and what its causes are as well as the changes it provokes in the society and international relations. In the midst of this uncontrolled 2015 refugee influx mostly from the Middle East to Europe, solving the crisis became an important topic on the EU agenda. Harmonization of EU migration policy emphasizes the preservation of the border crossings into the Schengen while integration of migrants remains predominantly the competence of national politics which brings certain tensions between European union and EU member states due to different approaches, understandings and ways of resolving problems that this kind of challenges bring. Integration is a demanding process that involves customization of migrants and citizens of the receiving state. The outcome of the integration process cannot be ascertained. The frequency of terror attacks and current events have significant effects on the ways of resolving the crisis and consequently the future of the European Union. In the times of the rise of Euroskepticism, which is proved by Brexit, next to mentioned problems, the paper shows that closer cooperation between EU member states is needed more than ever.