Spain: "The Mediterranean Corridor of Jihadism"

' Much of Spain was ruled by Muslim conquerors from 711 to 1492; Salafists believe that the territories the Muslims lost during the Spanish Reconquista still belong to them, and that they have a right to return and establish their rule there — a belief based on the Islamic doctrine that territories once occupied by Muslims must forever remain under Muslim domination.'

More here http://www.gatestoneinstitute.org/5368/spain-mediterranean-jihadism