Moroccan archbishop says surprise Ceuta crossing reflects complex landscape

"This case can’t be simplified — politics plays a part, but you have to examine all the variables."

An estimated 80,000 people flooded across the border from Morocco to Ceuta, a Spanish exclave in Morocco, in a matter of hours on July 30, overwhelming the city of just under 83,000 inhabitants.

It is not entirely clear what caused the mass border crossing. The vast majority of the undocumented migrants returned to Morocco after Spanish authorities made …