 Complete the following phrase:  In the 720s, the al-Andalus governors launched several saifa raids into Aquitaine, but were severely defeated by Duke Odo the Great of Aquitaine at the Battle of Toulouse 721. However, after crushing Odos Berber ally Uthman ibn Naissa on the eastern Pyrenees, Abdul Rahman Al Ghafiqi led an expedition north across the western Pyrenees and defeated the Aquitanian duke, who in turn appealed to the Frankish leader Charles Martel for assistance, offering to place himself under Carolingian sovereignty. At the 