In 723 Abd er Rahman governour of Spain marched over the Pyrenees, possibly to end the unrest on his northern border, but very likely to invade the Frankish territories.
The War between the Frankish and Muslims
Abd er Rahman defeated Eudes near Bordeaux, plundered the town, and marched north to the River Loire.
Charles positioned his army at a place where he expected the Muslim army to pass, at a defensive position. Possbly his tightly packed infantry, armed with swords, spears and shield formed a phalanx-like formation.
The next day, when the Muslims did not renew the battle, the Franks feared an ambush. Only after extensive reconnaissance by Frankish soldiers of the Muslim camp did it turn out that the Muslims had retreated during the night.
The Arab army retreated back south over the Pyrenees. Charles, who earned his nickname Martel (hammer) in this battle, drove the Muslims in the following years from the area between Arles and Avignon. He would continue by defeating the Muslims once more in a battle near the River Berre near Narbonne.
The frankish celebrated for their victory of the war of tours