The attacks of March 22 in Brussels were shocking, but not surprising. They reinforced what many have known for years: Belgium has a serious problem with terrorism.
For a long time, security analysts have expressed anxiety about the depth and extent of radicalisation and fundamentalism in the country. It is thought that Belgium has the highest per capita rate of foreign terrorist fighters of any EU country. A February 2016 “high-end estimate” puts that number at 562 out of a population of just over 11 million.
Last November it was revealed that some of the Paris attackers had Belgian connections and were known to the security forces there, and Brussels was virtually locked down for almost a week.