The Muslims in Spain threatened French territories.
The governor of Spain, marched over the Pyrenees to attempt to eliminate a strategic threat located north of the Andalusia border."
The Franks were prepared for the cold winter battle but the Arabs were not.
They wanted to get the fight over with the Muslims who were treated when they won the battle.
The Arab Army went back and Charles drove/led them for a while. He planned on beating the Muslims in a fight once again.
A culinary footnote happened from the battle which was credible. The Frankish bakers celebrated by serving it to celebrate the Franks who devoured the Invaders symbol. The French Croissant takes on Pride on many French tables.