The Spanish Air Force (In Spanish: El Ejército del Aire de España or Fuerza Aérea Española) Is one of three arms of the Millitary of Spain and has allocated an Article by the eighth of Spanish Constitution the task of ensuring the sovereignty and independence of Spain, to defend its territorial integrity and constitutional order, with special care in their airspace and maintaining international security, peace operations and humanitarian assistance.
The original article can be found at Spanish Air Force and the edit history here.