One state in this region was founded by a man who won the Battle of Annual against the forces of General Berenguer during a conflict in this region sometimes named for the exclave of Melilla.
Leopoldo O'Donnell became the first Duke of a city in this region after capturing it. The pretender Bou Hamra was based in this region's city of Taza, and a later state in this region had its currency designed by arms smuggler Charles Gardiner. Mohammed ben Abdallah was promised British aid during a siege of a city located in this region in 1774; his defeat resulted in the recognition of that exclave in this region in the Treaty of Aranjuez. The Emirate of (*) Nekor was located in this region. One state in this region was founded by a man who won the Battle of Annual against the forces of General Berenguer during a conflict in this region sometimes named for the exclave of Melilla. That conflict saw Abd el-Krim fail to take a city defended by Francisco Franco. For 10 points, name this mountainous region of Morocco in which a namesake war was prosecuted by Spain in the 1920s.
Leopoldo O'Donnell became the first Duke of a city in this region after capturing it.
Rif [prompt on "Maghreb"; prompt on "Morocco" until mentioned]