Sentence 1: Spain's Arab rulers exploited this disunity to sweep north across Gaul, controlling Langue?doc, Dordogne, and a large part of Provence, before being defeated at Poitiers in 732 by the army of Charles Martel.

Sentence 2: Spain's Arab rulers defeated Charles Martel's army at Poitiers.
Is this second sentence entailed by the first sentence?
no