From Islamization in Europe:
The outbreak began in England. At first there were signs of increasing extremism and incitement in declarations by Muslim clergy; then weapons were found, including poison; and then young Pakistani men who grew up in England performed acts of terror. German intelligence discovered that Pakistanis were responsible for the suicide bombing in Djerba, Tunisia in 2002, where German tourists were killed. Meanwhile, Moroccan citizens were involved in the two major terror attacks in Spain.
What French governments were ready to grant immigrants who came to the country was enough to satisfy the first generation. The second generation of French Muslims is demanding more than citizenship, a French education, and welfare. The French government apparently does not have and nor do other European countries a comprehensive answer to the problem of Islamization and the ensuing violence it brings.