One year ago Belgium was reeling from an attack by three suicide bombers on Brussels airport and a metro station in the capital.
Google promised better controls for its websites, particularly YouTube, after complaints companies' adverts have appeared next to hate-filled videos.
Google has apologised for allowing ads to appear alongside offensive videos on YouTube as more high-profile firms pulled their advertising.
A play called ‘Jihad’ has been on stage in Brussels and France.
Crowds in Paris and across France have said goodbye to 2016.
Italy’s Prime Minister Paolo Gentiloni says Berlin market attacker Anis Amri was most likely radicalised after his arrival in Italy in 2011.