Answer:
Halting the advance of Islam in Europe.
Establishing the Feudal System.
Explanation:
Charles Martel was a statesman and military leader who restore centralized government to France and unite all the Gaul territory under the Franks reign.
He is credited for stopping the advance of Islam in Europe in the Battle of Tours in Aquitaine. That battle helped him to establish the Frankish as the dominants of the regions and stopped the Arabs intentions in Europe.
He also is credited with being the first in establishing the feudalism throughout Europe.
I hope this answer helps you.