This is a timeline of the European migrant crisis from 2004 to the present. It lists migrant boat shipwrecking events from 2004-2015. From 2015 to the present, it also lists events connected with land migration and countries political reactions related to the European migrant crisis.
The French prime minister, Manuel Valls, said some of the killers had taken advantage of Europe's migrant crisis to "slip in" unnoticed.
As waves of refugees from Syria converged on Europe this summer, law enforcement authorities feared this scenario: That terrorist operatives would slip in among the multitudes [...] Last week's attacks on France may have validated some of those fears. At least three of the seven known attackers and the suspected ringleader, Abdelhamid Abaaoud [...] are thought to have crossed clandestinely from Syria into Europe.