The changes in the 21st century have brought new threats and problems for the international community. The European Union, as one of the most important actors in the world, was forced to change its approach to a new situation, which is characterized by the presence of threats such as illegal migration, huge refugee influx and the existence of fragile states in its neighborhood. The main objective of this paper is to present the EU’s engagement in stabilization of fragile states through civilian and military missions and operations to hold illegal migration. It answers the question whether the actions undertaken by the EU are powerful. The analysis of the operations and missions in chosen states (Somalia, Libya) shown that although the influx of migrants and refugees is lower, the changes and the influence of actions helping them to become stronger and more secure states are rather minor The conclusions comprise several thoughts which should be taken under consideration by the EU in the future in order to support European security and wealth.