A security guard stands on the other side of a barbed wire fence from migrants in Ceuta. Photograph: Patrick Robert/Corbis
Now, in a unique project, Guardian journalists have visited 10 of the most controversial, striking, contested and extraordinary walls, from the US-Mexican border to the West Bank, and from Europe’s eastern and southern frontiers to the divided cities of Homs and Belfast.
We have tried to establish why these new divisions are going up now, in an age when globalisation was supposed to tear the barriers down - particularly when, as history shows, walls rarely did what they set out to do.
