The first decisive victory of a Christian army over a Muslim power was fought by Charles Martel 's men in the vicinity of Poitiers on 10 October 732 .
The first decisive victory of a Christian army over a Muslim power is the Battle of Tours .
The first decisive victory of a Christian army over a Muslim power , the Battle of Tours , was fought by Charles Martel 's men in the vicinity of Poitiers on 10 October 732 .