One of the concomitants of migration is the danger posed by armed conflicts which are transposed from the country of origin of the migrants to the territory of the receiving country. The article analyses this issue by presenting the current situation in Germany. It discusses the conflict between the Turks and Kurds which took place in the 90s and the danger posed by the radicalisation of Muslim communities, especially the Salafi s. Several internal threats can be identifi ed: the recruitment of foreigners and German nationals to fi ght for the Islamic State, the return of welltrained terrorists who are willing to continue jihad in Germany, and also the so-called individual jihad, that is terrorist attacks committed by people not affiliated with any organization. The current situation is responsible for a rise in ‘anti-Islamic’ feelings and the inception of such new movements as PEGIDA, LeGIDA or HoGeSa (Hooligans Against Salafi s), which in turn leads to further rioting and unrest. The State defends against this threat by increasing the surveillance of suspects, banning the activities of radical organisations, counteracting recruitment, blocking collection of money, restricting freedom of movement abroad and so on. However, due to the peculiarity of radical movements and the nature of their activities, it is necessary to implement a more comprehensive strategy, as even the best integration programmes fail to succeed. Key words: migration, integration, danger, conflicts, Muslims, radicalisation, new movements