People stand in front of a remembrance wall on March 22, 2017 at the Maelbeek - Maalbeek subway station in Brussels, during the commemorations marking the first anniversary of the twin Brussels attacks by Islamic extremists.
Belgium marks the first anniversary of the Islamic State bombings in Brussels, one at the airport and the other in the metro, in which 32 people were killed and more than 320 wounded with ceremonies showing that the heart of Europe stands defiant. / AFP PHOTO / JOHN THYS        (Photo credit should read JOHN THYS/AFP/Getty Images)